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security advisorymoderatebuffer overrun

openSUSE Leap 15.6 SUSE-2026-0306-3 Severely Affected by CVE-2025-58202

An update that solves two vulnerabilities can now be installed.. # Security update for xen Announcement ID: SUSE-SU-2026:0306-1 Release Date: 2026-01-27T16:15:20Z Rating: moderate References: * bsc#1256745 * bsc#1256747 Cross-References: * CVE-2025-58150 * CVE-2026-23553 CVSS scores: * CVE-2025-58150 ( SUSE ): 4.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N * CVE-2025-58150 ( SUSE ): 5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L * CVE-2026-23553 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N * CVE-2026-23553 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Affected Products: * openSUSE Leap 15.6 An update that solves two vulnerabilities can now be installed. ## Description: This update for xen fixes the following issues: * CVE-2025-58150: Fixed buffer overrun with shadow paging and tracing (XSA-477) (bsc#1256745) * CVE-2026-23553: Fixed incomplete IBPB for vCPU isolation (XSA-479) (bsc#1256747) ## Special Instructions and Notes: * Please reboot the system after installing this update. ## 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 15.6 zypper in -t patch SUSE-2026-306=1 openSUSE-SLE-15.6-2026-306=1 ## Package List: * openSUSE Leap 15.6 (aarch64 x86_64 i586) * xen-tools-domU-debuginfo-4.18.5_10-150600.3.37.1 * xen-tools-domU-4.18.5_10-150600.3.37.1 * xen-debugsource-4.18.5_10-150600.3.37.1 * xen-libs-debuginfo-4.18.5_10-150600.3.37.1 * xen-libs-4.18.5_10-150600.3.37.1 * xen-devel-4.18.5_10-150600.3.37.1 * openSUSE Leap 15.6 (x86_64) * xen-libs-32bit-4.18.5_10-150600.3.37.1 * xen-libs-32bit-debuginfo-4.18.5_10-150600.3.37.1 * openSUSE Leap 15.6 (aarch64 x86_64) * xen-tools-debuginfo-4.18.5_10-150600.3.37.1 *xen-tools-4.18.5_10-150600.3.37.1 * xen-4.18.5_10-150600.3.37.1 * xen-doc-html-4.18.5_10-150600.3.37.1 * openSUSE Leap 15.6 (noarch) * xen-tools-xendomains-wait-disk-4.18.5_10-150600.3.37.1 * openSUSE Leap 15.6 (aarch64_ilp32) * xen-libs-64bit-debuginfo-4.18.5_10-150600.3.37.1 * xen-libs-64bit-4.18.5_10-150600.3.37.1 ## References: * https://www.suse.com/security/cve/CVE-2025-58150.html * https://www.suse.com/security/cve/CVE-2026-23553.html * https://bugzilla.suse.com/show_bug.cgi?id=1256745 * https://bugzilla.suse.com/show_bug.cgi?id=1256747 . Moderate security update for openSUSE addressing buffer overrun and vCPU isolation issues with xen.. openSUSE security update,xen buffer overrun,xen vCPU isolation,moderate security patch. . LinuxSecurity.com Team

Jan 28, 2026 SuSE