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202
security advisoryimportantheap overflowopenSUSE Xwayland Important Heap Overflow Issue 2026-21283-1
An update that solves 2 vulnerabilities and has 2 bug fixes can now be installed.. openSUSE security update: security update for xwayland ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21283-1 Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Affected Products: openSUSE Leap 16.0 ------------------------------------------------------------- An update that solves 2 vulnerabilities and has 2 bug fixes can now be installed. Description: This update for xwayland fixes the following issues - CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). - CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). Patch instructions: To install this openSUSE security update use the suse recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - openSUSE Leap 16.0 zypper in -t patch openSUSE-Leap-16.0-1194=1 Package List: - openSUSE Leap 16.0: xwayland-24.1.6-160000.6.1 xwayland-devel-24.1.6-160000.6.1 References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html . Critical update for xwayland in openSUSE addressing two vulnerabilities with severity marked as important affecting system security.. openSUSEupdate,xwayland vulnerabilities,heap overflow,security patch. . Severity: Important. LinuxSecurity.com Team
Jul 13, 2026
•Important
OpenSUSE
202
security advisoryimportantheap overflowopenSUSE xorg-x11-server Important Buffer Overflow Heap Issues 2026-2786-1
An update that solves two vulnerabilities can now be installed.. # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2786-1 Release Date: 2026-07-08T07:16:51Z Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-55999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( NVD ): 9.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP6 An update that solves two vulnerabilities can now be installed. ## Description: This update for xorg-x11-server fixes the following issues * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2786=1 *openSUSE Leap 15.6 zypper in -t patch SUSE-2026-2786=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2786=1 ## Package List: * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64) * xorg-x11-server-sdk-21.1.11-150600.5.31.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-extra-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-debugsource-21.1.11-150600.5.31.1 * xorg-x11-server-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.31.1 * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64) * xorg-x11-server-sdk-21.1.11-150600.5.31.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-extra-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-debugsource-21.1.11-150600.5.31.1 * xorg-x11-server-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-21.1.11-150600.5.31.1 * xorg-x11-server-source-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.31.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64) * xorg-x11-server-sdk-21.1.11-150600.5.31.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-extra-21.1.11-150600.5.31.1 * xorg-x11-server-debugsource-21.1.11-150600.5.31.1 * xorg-x11-server-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.31.1 ## References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html * https://bugzilla.suse.com/show_bug.cgi?id=1268893 * https://bugzilla.suse.com/show_bug.cgi?id=1268894 . # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2786-1Release Date: 2026-07-08T. update, solves, vulnerabilities, installed, security, xorg-x11-serve. . Severity: Important. LinuxSecurity.com Team
Jul 08, 2026
•Important
OpenSUSE
100
security advisorybuffer overflowSuSESUSE Important Update for xorg-x11-server CVE-2026-55999, CVE-2026-56000
An update that solves two vulnerabilities can now be installed.. # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2786-1 Release Date: 2026-07-08T07:16:51Z Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-55999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( NVD ): 9.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server 15 SP6 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP6 An update that solves two vulnerabilities can now be installed. ## Description: This update for xorg-x11-server fixes the following issues * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2786=1 *openSUSE Leap 15.6 zypper in -t patch SUSE-2026-2786=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2786=1 ## Package List: * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64) * xorg-x11-server-sdk-21.1.11-150600.5.31.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-extra-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-debugsource-21.1.11-150600.5.31.1 * xorg-x11-server-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.31.1 * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64) * xorg-x11-server-sdk-21.1.11-150600.5.31.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-extra-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-debugsource-21.1.11-150600.5.31.1 * xorg-x11-server-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-21.1.11-150600.5.31.1 * xorg-x11-server-source-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.31.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64) * xorg-x11-server-sdk-21.1.11-150600.5.31.1 * xorg-x11-server-extra-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-extra-21.1.11-150600.5.31.1 * xorg-x11-server-debugsource-21.1.11-150600.5.31.1 * xorg-x11-server-debuginfo-21.1.11-150600.5.31.1 * xorg-x11-server-21.1.11-150600.5.31.1 * xorg-x11-server-Xvfb-21.1.11-150600.5.31.1 ## References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html * https://bugzilla.suse.com/show_bug.cgi?id=1268893 * https://bugzilla.suse.com/show_bug.cgi?id=1268894 . Security update for SUSE addressing important vulnerabilities inxorg-x11-server, offering essential patching guidance.. SUSE Security Update,xorg-x11-server Patch,Heap Buffer Overflow,Memory Management Flaw. . Severity: Important. LinuxSecurity.com Team
Jul 08, 2026
•Important
SuSE
100
security advisorybuffer overflowSuSESUSE xorg-x11-server Important Heap Buffer Overflow Advisory 2026-2788-1
An update that solves two vulnerabilities can now be installed.. # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2788-1 Release Date: 2026-07-08T07:22:17Z Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-55999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( NVD ): 9.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affected Products: * Basesystem Module 15-SP7 * Development Tools Module 15-SP7 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP7 An update that solves two vulnerabilities can now be installed. ## Description: This update for xorg-x11-server fixes the following issues * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * Basesystem Module 15-SP7 zypper in -t patchSUSE-SLE-Module-Basesystem-15-SP7-2026-2788=1 * Development Tools Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-2788=1 ## Package List: * Development Tools Module 15-SP7 (aarch64 ppc64le s390x x86_64) * xorg-x11-server-debugsource-21.1.15-150700.5.22.1 * xorg-x11-server-sdk-21.1.15-150700.5.22.1 * xorg-x11-server-debuginfo-21.1.15-150700.5.22.1 * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64) * xorg-x11-server-debugsource-21.1.15-150700.5.22.1 * xorg-x11-server-21.1.15-150700.5.22.1 * xorg-x11-server-Xvfb-debuginfo-21.1.15-150700.5.22.1 * xorg-x11-server-extra-debuginfo-21.1.15-150700.5.22.1 * xorg-x11-server-Xvfb-21.1.15-150700.5.22.1 * xorg-x11-server-debuginfo-21.1.15-150700.5.22.1 * xorg-x11-server-extra-21.1.15-150700.5.22.1 ## References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html * https://bugzilla.suse.com/show_bug.cgi?id=1268893 * https://bugzilla.suse.com/show_bug.cgi?id=1268894 . Important security update for xorg-x11-server addresses buffer overflow and memory issues. Install patches immediately.. SUSE update,xorg-x11-server,security patch,heap overflow,memory management. . Severity: Important. LinuxSecurity.com Team
Jul 08, 2026
•Important
SuSE
202
security advisoryimportantheap overflowopenSUSE xorg-x11-server Important Heap Overflow Issues Fix 2026-2789-1
An update that solves two vulnerabilities can now be installed.. # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2789-1 Release Date: 2026-07-08T07:29:10Z Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-55999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( NVD ): 9.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4 An update that solves two vulnerabilities can now be installed. ## Description: This update for xorg-x11-server fixes the following issues * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternativelyyou can run the command listed for your product: * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2789=1 * SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2789=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2789=1 * openSUSE Leap 15.4 zypper in -t patch SUSE-2026-2789=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2789=1 ## Package List: * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64) * xorg-x11-server-source-1.20.3-150400.38.74.1 * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 *xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 ## References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html * https://bugzilla.suse.com/show_bug.cgi?id=1268893 * https://bugzilla.suse.com/show_bug.cgi?id=1268894 . # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2789-1 Release Date: 2026-07-08T. update, solves, vulnerabilities, installed, security, xorg-x11-serve. . Severity: Important. LinuxSecurity.com Team
Jul 08, 2026
•Important
OpenSUSE
100
security advisorySuSEimportantSUSE xorg-x11-server Important Heap Issues Vulnerability 2026-2789-1
An update that solves two vulnerabilities can now be installed.. # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2789-1 Release Date: 2026-07-08T07:29:10Z Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-55999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( NVD ): 9.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server 15 SP4 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP4 An update that solves two vulnerabilities can now be installed. ## Description: This update for xorg-x11-server fixes the following issues * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternativelyyou can run the command listed for your product: * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2789=1 * SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2789=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2789=1 * openSUSE Leap 15.4 zypper in -t patch SUSE-2026-2789=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2789=1 ## Package List: * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64) * xorg-x11-server-source-1.20.3-150400.38.74.1 * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 *xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64) * xorg-x11-server-extra-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-1.20.3-150400.38.74.1 * xorg-x11-server-sdk-1.20.3-150400.38.74.1 * xorg-x11-server-debuginfo-1.20.3-150400.38.74.1 * xorg-x11-server-extra-1.20.3-150400.38.74.1 * xorg-x11-server-debugsource-1.20.3-150400.38.74.1 ## References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html * https://bugzilla.suse.com/show_bug.cgi?id=1268893 * https://bugzilla.suse.com/show_bug.cgi?id=1268894 . Security update for SUSE fixing two important vulnerabilities in xorg-x11-server affecting system stability and security.. SUSE Linux Enterprise, xorg-x11-server, security update. . Severity: Important. LinuxSecurity.com Team
Jul 08, 2026
•Important
SuSE
202
security advisoryimportantheap overflowopenSUSE xorg-x11-server Important Memory Issues Fix 2026-2791-1
An update that solves two vulnerabilities can now be installed.. # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2791-1 Release Date: 2026-07-08T07:33:14Z Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-55999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( NVD ): 9.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP5 An update that solves two vulnerabilities can now be installed. ## Description: This update for xorg-x11-server fixes the following issues * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternativelyyou can run the command listed for your product: * SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2791=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2791=1 * openSUSE Leap 15.5 zypper in -t patch SUSE-2026-2791=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2791=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2791=1 ## Package List: * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-source-21.1.4-150500.7.52.1 *xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 ## References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html * https://bugzilla.suse.com/show_bug.cgi?id=1268893 * https://bugzilla.suse.com/show_bug.cgi?id=1268894 . # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2791-1 Release Date: 2026-07-08T. update, solves, vulnerabilities, installed, security, xorg-x11-serve. . Severity: Important. LinuxSecurity.com Team
Jul 08, 2026
•Important
OpenSUSE
100
security advisorybuffer overflowSuSESUSE xorg-x11-server Important Memory Issues Fixed SUSE 2026-2791-1
An update that solves two vulnerabilities can now be installed.. # Security update for xorg-x11-server Announcement ID: SUSE-SU-2026:2791-1 Release Date: 2026-07-08T07:33:14Z Rating: important References: * bsc#1268893 * bsc#1268894 Cross-References: * CVE-2026-55999 * CVE-2026-56000 CVSS scores: * CVE-2026-55999 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-55999 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-55999 ( NVD ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H * CVE-2026-56000 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-56000 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H * CVE-2026-56000 ( NVD ): 9.0 CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Affected Products: * openSUSE Leap 15.5 * SUSE Linux Enterprise High Performance Computing 15 SP5 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 * SUSE Linux Enterprise Server 15 SP5 * SUSE Linux Enterprise Server 15 SP5 LTSS * SUSE Linux Enterprise Server for SAP Applications 15 SP5 An update that solves two vulnerabilities can now be installed. ## Description: This update for xorg-x11-server fixes the following issues * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap buffer overflow when a font loaded from a malicious PCF file is processed (bsc#1268893). * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead to a heap use-after-free when an interaction with a malicious client creating GLX contexts happens (bsc#1268894). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternativelyyou can run the command listed for your product: * SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2791=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2791=1 * openSUSE Leap 15.5 zypper in -t patch SUSE-2026-2791=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2791=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2791=1 ## Package List: * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64 x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-source-21.1.4-150500.7.52.1 *xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64 x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64) * xorg-x11-server-Xvfb-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-Xvfb-21.1.4-150500.7.52.1 * xorg-x11-server-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-sdk-21.1.4-150500.7.52.1 * xorg-x11-server-debugsource-21.1.4-150500.7.52.1 * xorg-x11-server-extra-21.1.4-150500.7.52.1 * xorg-x11-server-extra-debuginfo-21.1.4-150500.7.52.1 * xorg-x11-server-21.1.4-150500.7.52.1 ## References: * https://www.suse.com/security/cve/CVE-2026-55999.html * https://www.suse.com/security/cve/CVE-2026-56000.html * https://bugzilla.suse.com/show_bug.cgi?id=1268893 * https://bugzilla.suse.com/show_bug.cgi?id=1268894 . Update addresses two issues in xorg-x11-server with important rating. Install the patch if using SUSE distributions.. SUSE Linux patch, xorg-x11-server update, important security fix, buffer overflow, memory management. . Severity: Important. LinuxSecurity.com Team
Jul 08, 2026
•Important
SuSE
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