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The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:. Oracle Linux Security Advisory ELSA-2026-25051 http://linux.oracle.com/errata/ELSA-2026-25051.html The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network: x86_64: libyang-2.1.148-1.el9_8.1.i686.rpm libyang-2.1.148-1.el9_8.1.x86_64.rpm libyang-devel-2.1.148-1.el9_8.1.i686.rpm libyang-devel-2.1.148-1.el9_8.1.x86_64.rpm libyang-devel-doc-2.1.148-1.el9_8.1.x86_64.rpm aarch64: libyang-2.1.148-1.el9_8.1.aarch64.rpm libyang-devel-2.1.148-1.el9_8.1.aarch64.rpm libyang-devel-doc-2.1.148-1.el9_8.1.aarch64.rpm SRPMS: http://oss.oracle.com/ol9/SRPMS-updates/libyang-2.1.148-1.el9_8.1.src.rpm Related CVEs: CVE-2026-44673 Description of changes: [2.1.148-1.1] - Fix integer overflow and OOM in LYB parser string/value reading - Resolves: RHEL-177019 _______________________________________________ El-errata mailing list
libyang could be made to crash or run programs if it received specially crafted network traffic.. ========================================================================== Ubuntu Security Notice USN-8485-1 June 30, 2026 libyang vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 25.10 Summary: libyang could be made to crash or run programs if it received specially crafted network traffic. Software Description: - libyang: parser toolkit for IETF YANG data modeling Details: It was discovered that libyang incorrectly handled certain metadata list pointers. An attacker could use this issue to cause libyang to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS libyang3 3.13.6-1ubuntu0.1 Ubuntu 25.10 libyang3 3.13.5-2ubuntu0.1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8485-1 CVE-2026-41401 Package Information: https://launchpad.net/ubuntu/+source/libyang/3.13.6-1ubuntu0.1 https://launchpad.net/ubuntu/+source/libyang/3.13.5-2ubuntu0.1 . libyang in Ubuntu could crash or run exploits due to crafted network requests. Update recommended for security.. libyang update, Ubuntu security notice, network traffic exploitation, cyber threat, software vulnerability. . Severity: Critical. LinuxSecurity.com Team
An update that solves 2 vulnerabilities and has 2 bug fixes can now be installed.. openSUSE security update: security update for libyang ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21113-1 Rating: important References: * bsc#1265330 * bsc#1266316 Cross-References: * CVE-2026-41401 * CVE-2026-44673 CVSS scores: * CVE-2026-41401 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H * CVE-2026-41401 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-44673 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H * CVE-2026-44673 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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 libyang fixes the following issues - CVE-2026-41401: use-after-free in `lyd_parser_set_data_flags` when processing crafted YANG XML documents with specific metadata attributes (bsc#1266316). - CVE-2026-44673: integer overflow in `lyb_read_string()` of `src/parser_lyb.c` leads to heap buffer overflow when parsing a maliciously crafted LYB binary blob (bsc#1265330). 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-16.0-978=1 Package List: - openSUSE Leap 16.0: libyang-devel-2.1.148-160000.4.1 libyang-doc-2.1.148-160000.4.1 libyang2-2.1.148-160000.4.1 yang-tools-2.1.148-160000.4.1 References: * https://www.suse.com/security/cve/CVE-2026-41401.html * https://www.suse.com/security/cve/CVE-2026-44673.html . An important security update for openSUSE's libyang addresses two vulnerabilities with installation instructions..openSUSE libyang security update, openSUSE vulnerabilities, important security advisory. . Severity: Important. LinuxSecurity.com Team
An update that solves two vulnerabilities can now be installed.. # Security update for libyang Announcement ID: SUSE-SU-2026:22200-1 Release Date: 2026-06-20T06:58:54Z Rating: important References: * bsc#1265330 * bsc#1266316 Cross-References: * CVE-2026-41401 * CVE-2026-44673 CVSS scores: * CVE-2026-41401 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-41401 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H * CVE-2026-41401 ( NVD ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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 * CVE-2026-41401 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-44673 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N * CVE-2026-44673 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H * CVE-2026-44673 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * SUSE Linux Enterprise Server 16.0 An update that solves two vulnerabilities can now be installed. ## Description: This update for libyang fixes the following issues * CVE-2026-41401: use-after-free in `lyd_parser_set_data_flags` when processing crafted YANG XML documents with specific metadata attributes (bsc#1266316). * CVE-2026-44673: integer overflow in `lyb_read_string()` of `src/parser_lyb.c` leads to heap buffer overflow when parsing a maliciously crafted LYB binary blob (bsc#1265330). ## 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 16.0 zypper in -t patch SUSE-SLES-16.0-978=1 ## Package List: * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64) * libyang-debugsource-2.1.148-160000.4.1 *libyang2-2.1.148-160000.4.1 * libyang-debuginfo-2.1.148-160000.4.1 * libyang2-debuginfo-2.1.148-160000.4.1 ## References: * https://www.suse.com/security/cve/CVE-2026-41401.html * https://www.suse.com/security/cve/CVE-2026-44673.html * https://bugzilla.suse.com/show_bug.cgi?id=1265330 * https://bugzilla.suse.com/show_bug.cgi?id=1266316 . A critical SUSE update addresses important vulnerabilities in libyang, enhancing system protection and stability.. SUSE Update, libyang Security, Important Fixes, System Vulnerabilities. . Severity: Important. LinuxSecurity.com Team
An update that solves two vulnerabilities can now be installed.. # Security update for libyang Announcement ID: SUSE-SU-2026:22208-1 Release Date: 2026-06-20T06:56:04Z Rating: important References: * bsc#1265330 * bsc#1266316 Cross-References: * CVE-2026-41401 * CVE-2026-44673 CVSS scores: * CVE-2026-41401 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-41401 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H * CVE-2026-41401 ( NVD ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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 * CVE-2026-41401 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-44673 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N * CVE-2026-44673 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H * CVE-2026-44673 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * SUSE Linux Enterprise Server 16.0 * SUSE Linux Enterprise Server for SAP applications 16.0 An update that solves two vulnerabilities can now be installed. ## Description: This update for libyang fixes the following issues * CVE-2026-41401: use-after-free in `lyd_parser_set_data_flags` when processing crafted YANG XML documents with specific metadata attributes (bsc#1266316). * CVE-2026-44673: integer overflow in `lyb_read_string()` of `src/parser_lyb.c` leads to heap buffer overflow when parsing a maliciously crafted LYB binary blob (bsc#1265330). ## 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 16.0 zypper in -t patch SUSE-SLES-16.0-978=1 * SUSE Linux Enterprise Server for SAP applications 16.0 zypper in -t patchSUSE-SLES-16.0-978=1 ## Package List: * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64) * libyang-debugsource-2.1.148-160000.4.1 * libyang2-2.1.148-160000.4.1 * libyang-debuginfo-2.1.148-160000.4.1 * libyang2-debuginfo-2.1.148-160000.4.1 * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64) * libyang-debugsource-2.1.148-160000.4.1 * libyang2-2.1.148-160000.4.1 * libyang-debuginfo-2.1.148-160000.4.1 * libyang2-debuginfo-2.1.148-160000.4.1 ## References: * https://www.suse.com/security/cve/CVE-2026-41401.html * https://www.suse.com/security/cve/CVE-2026-44673.html * https://bugzilla.suse.com/show_bug.cgi?id=1265330 * https://bugzilla.suse.com/show_bug.cgi?id=1266316 . Critical security update for libyang resolves two vulnerabilities related to buffer overflow and use-after-free issues. Recommended install.. SUSE Linux, libyang update, security risks, patch vulnerabilities. . Severity: Important. LinuxSecurity.com Team
An update that solves one vulnerability can now be installed.. # Security update for libyang Announcement ID: SUSE-SU-2026:2381-1 Release Date: 2026-06-12T06:50:59Z Rating: important References: * bsc#1265330 Cross-References: * CVE-2026-44673 CVSS scores: * CVE-2026-44673 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N * CVE-2026-44673 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H * CVE-2026-44673 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * openSUSE Leap 15.3 * 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 one vulnerability can now be installed. ## Description: This update for libyang fixes the following issue * CVE-2026-44673: integer overflow in `lyb_read_string()` of `src/parser_lyb.c` leads to heap buffer overflow when parsing a maliciously crafted LYB binary blob (bsc#1265330). ## 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: * openSUSE Leap 15.3 zypper in -t patch SUSE-2026-2381=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2381=1 * SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2381=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2381=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2381=1 ##Package List: * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586) * libyang-devel-1.0.184-150300.3.9.1 * yang-tools-debuginfo-1.0.184-150300.3.9.1 * yang-tools-1.0.184-150300.3.9.1 * libyang-cpp-devel-1.0.184-150300.3.9.1 * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * python3-yang-1.0.184-150300.3.9.1 * python3-yang-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang-cpp1-1.0.184-150300.3.9.1 * libyang-cpp1-debuginfo-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * openSUSE Leap 15.3 (noarch) * libyang-doc-1.0.184-150300.3.9.1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 *libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 ## References: * https://www.suse.com/security/cve/CVE-2026-44673.html * https://bugzilla.suse.com/show_bug.cgi?id=1265330 . Critical update for libyang addresses important buffer overflow issue on openSUSE, apply patches now to secure system.. libyang update, buffer overflow, openSUSE patch, important advisory. . Severity: Important. LinuxSecurity.com Team
An update that solves one vulnerability can now be installed.. # Security update for libyang Announcement ID: SUSE-SU-2026:2381-1 Release Date: 2026-06-12T06:50:59Z Rating: important References: * bsc#1265330 Cross-References: * CVE-2026-44673 CVSS scores: * CVE-2026-44673 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N * CVE-2026-44673 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H * CVE-2026-44673 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * openSUSE Leap 15.3 * 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 one vulnerability can now be installed. ## Description: This update for libyang fixes the following issue * CVE-2026-44673: integer overflow in `lyb_read_string()` of `src/parser_lyb.c` leads to heap buffer overflow when parsing a maliciously crafted LYB binary blob (bsc#1265330). ## 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: * openSUSE Leap 15.3 zypper in -t patch SUSE-2026-2381=1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-2381=1 * SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-2381=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-2381=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-2381=1 ##Package List: * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586) * libyang-devel-1.0.184-150300.3.9.1 * yang-tools-debuginfo-1.0.184-150300.3.9.1 * yang-tools-1.0.184-150300.3.9.1 * libyang-cpp-devel-1.0.184-150300.3.9.1 * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * python3-yang-1.0.184-150300.3.9.1 * python3-yang-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang-cpp1-1.0.184-150300.3.9.1 * libyang-cpp1-debuginfo-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * openSUSE Leap 15.3 (noarch) * libyang-doc-1.0.184-150300.3.9.1 * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64 x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 * libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64 x86_64) * libyang-extentions-debuginfo-1.0.184-150300.3.9.1 * libyang1-debuginfo-1.0.184-150300.3.9.1 *libyang-debuginfo-1.0.184-150300.3.9.1 * libyang-extentions-1.0.184-150300.3.9.1 * libyang1-1.0.184-150300.3.9.1 * libyang-debugsource-1.0.184-150300.3.9.1 ## References: * https://www.suse.com/security/cve/CVE-2026-44673.html * https://bugzilla.suse.com/show_bug.cgi?id=1265330 . An important security fix for libyang resolves a severe buffer overflow issue affecting multiple SUSE distributions.. libyang update, SUSE security advisory, buffer overflow, openSUSE patch, CVE-2026-44673. . Severity: Important. LinuxSecurity.com Team
An update that solves two vulnerabilities can now be installed.. # Security update for libyang Announcement ID: SUSE-SU-2026:2334-1 Release Date: 2026-06-10T08:42:45Z Rating: important References: * bsc#1265330 * bsc#1266316 Cross-References: * CVE-2026-41401 * CVE-2026-44673 CVSS scores: * CVE-2026-41401 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N * CVE-2026-41401 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H * CVE-2026-41401 ( NVD ): 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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 * CVE-2026-41401 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H * CVE-2026-44673 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N * CVE-2026-44673 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H * CVE-2026-44673 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Affected Products: * SUSE Linux Enterprise High Performance Computing 12 SP5 * SUSE Linux Enterprise Server 12 SP5 * SUSE Linux Enterprise Server 12 SP5 LTSS * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security * SUSE Linux Enterprise Server for SAP Applications 12 SP5 An update that solves two vulnerabilities can now be installed. ## Description: This update for libyang fixes the following issues * CVE-2026-41401: use-after-free in `lyd_parser_set_data_flags` when processing crafted YANG XML documents with specific metadata attributes (bsc#1266316). * CVE-2026-44673: integer overflow in `lyb_read_string()` of `src/parser_lyb.c` leads to heap buffer overflow when parsing a maliciously crafted LYB binary blob (bsc#1265330). ## 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 12 SP5 LTSS zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-2334=1 * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2334=1 ## Package List: * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64) * libyang2-2.1.148-8.8.1 * libyang-debugsource-2.1.148-8.8.1 * libyang2-debuginfo-2.1.148-8.8.1 * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64) * libyang2-2.1.148-8.8.1 * libyang-debugsource-2.1.148-8.8.1 * libyang2-debuginfo-2.1.148-8.8.1 ## References: * https://www.suse.com/security/cve/CVE-2026-41401.html * https://www.suse.com/security/cve/CVE-2026-44673.html * https://bugzilla.suse.com/show_bug.cgi?id=1265330 * https://bugzilla.suse.com/show_bug.cgi?id=1266316 . Security update for libyang in SUSE addresses important vulnerabilities, including heap overflow and use-after-free issues.. libyang security update,SUSE vulnerabilities,heap overflow,use-after-free,data integrity. . Severity: Important. LinuxSecurity.com Team
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