An update that solves three vulnerabilities can now be installed.. # Security update for xen Announcement ID: SUSE-SU-2026:0328-1 Release Date: 2026-01-28T15:39:28Z Rating: moderate References: * bsc#1252692 * bsc#1256745 * bsc#1256747 Cross-References: * CVE-2025-58149 * CVE-2025-58150 * CVE-2026-23553 CVSS scores: * CVE-2025-58149 ( SUSE ): 4.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N * CVE-2025-58149 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N * CVE-2025-58149 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N * 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-2025-58150 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H * 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 * CVE-2026-23553 ( NVD ): 2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N Affected Products: * SUSE Linux Enterprise Server 12 SP5 * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security * SUSE Linux Enterprise Server for SAP Applications 12 SP5 An update that solves three vulnerabilities can now be installed. ## Description: This update for xen fixes the following issues: Security fixes: * 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) * CVE-2025-58149: Fixed incorrect removal od permissions on PCI device unplug allow PV guests to access memory of devices no longer assigned to it (XSA-476) (bsc#1252692) ## Special Instructions and Notes: * Please reboot the system after installing this update. ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methodslike YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-328=1 ## Package List: * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64) * xen-devel-4.12.4_64-3.137.1 * xen-libs-debuginfo-4.12.4_64-3.137.1 * xen-tools-domU-4.12.4_64-3.137.1 * xen-libs-debuginfo-32bit-4.12.4_64-3.137.1 * xen-4.12.4_64-3.137.1 * xen-libs-32bit-4.12.4_64-3.137.1 * xen-libs-4.12.4_64-3.137.1 * xen-debugsource-4.12.4_64-3.137.1 * xen-tools-4.12.4_64-3.137.1 * xen-tools-domU-debuginfo-4.12.4_64-3.137.1 * xen-tools-debuginfo-4.12.4_64-3.137.1 * xen-doc-html-4.12.4_64-3.137.1 ## References: * https://www.suse.com/security/cve/CVE-2025-58149.html * 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=1252692 * https://bugzilla.suse.com/show_bug.cgi?id=1256745 * https://bugzilla.suse.com/show_bug.cgi?id=1256747 . SUSE security update addresses three issues in Xen, with moderate severity including buffer overrun and vCPU isolation.. SUSE Xen Security Update 2026 Moderate Buffer Overrun. . LinuxSecurity.com Team
Incorrect removal of permissions on PCI device unplug [XSA-476, CVE-2025-58149] x86: Incorrect input sanitisation in Viridian hypercalls [XSA-475, CVE-2025-58147, CVE-2025-58148]. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2025-ec271ef07b 2025-11-09 03:17:35.195054+00:00 -------------------------------------------------------------------------------- Name : xen Product : Fedora 42 Version : 4.19.3 Release : 8.fc42 URL : https://xenproject.org/ Summary : Xen is a virtual machine monitor Description : This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor -------------------------------------------------------------------------------- Update Information: Incorrect removal of permissions on PCI device unplug [XSA-476, CVE-2025-58149] x86: Incorrect input sanitisation in Viridian hypercalls [XSA-475, CVE-2025-58147, CVE-2025-58148] -------------------------------------------------------------------------------- ChangeLog: * Fri Oct 24 2025 Michael Young - 4.19.3-8 - Incorrect removal of permissions on PCI device unplug [XSA-476, CVE-2025-58149] * Tue Oct 21 2025 Michael Young - 4.19.3-6 - x86: Incorrect input sanitisation in Viridian hypercalls [XSA-475, CVE-2025-58147, CVE-2025-58148] -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-ec271ef07b' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be foundat https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
Incorrect removal of permissions on PCI device unplug [XSA-476, CVE-2025-58149] x86: Incorrect input sanitisation in Viridian hypercalls [XSA-475, CVE-2025-58147, CVE-2025-58148]. -------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2025-48dc1c8c79 2025-11-07 02:35:35.301730+00:00 -------------------------------------------------------------------------------- Name : xen Product : Fedora 41 Version : 4.19.3 Release : 7.fc41 URL : https://xenproject.org/ Summary : Xen is a virtual machine monitor Description : This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor -------------------------------------------------------------------------------- Update Information: Incorrect removal of permissions on PCI device unplug [XSA-476, CVE-2025-58149] x86: Incorrect input sanitisation in Viridian hypercalls [XSA-475, CVE-2025-58147, CVE-2025-58148] -------------------------------------------------------------------------------- ChangeLog: * Fri Oct 24 2025 Michael Young - 4.19.3-7 - Incorrect removal of permissions on PCI device unplug [XSA-476, CVE-2025-58149] * Tue Oct 21 2025 Michael Young - 4.19.3-5 - x86: Incorrect input sanitisation in Viridian hypercalls [XSA-475, CVE-2025-58147, CVE-2025-58148] -------------------------------------------------------------------------------- This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-48dc1c8c79' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys -------------------------------------------------------------------------------- -- _______________________________________________ package-announce mailing list --
PCI devices with RMRRs not deassigned correctly [XSA-386, CVE-2021-28702]. --------------------------------------------------------------------------------Fedora Update Notification FEDORA-2021-829f5f2f43 2021-10-29 22:48:33.390176 --------------------------------------------------------------------------------Name : xen Product : Fedora 35 Version : 4.15.1 Release : 2.fc35 URL : https://xenproject.org/ Summary : Xen is a virtual machine monitor Description : This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor --------------------------------------------------------------------------------Update Information: PCI devices with RMRRs not deassigned correctly [XSA-386, CVE-2021-28702] --------------------------------------------------------------------------------ChangeLog: --------------------------------------------------------------------------------References: [ 1 ] Bug #2011247 - CVE-2021-28702 xen: administrators of guests which have been assigned RMRR-using PCI devices can cause DoS https://bugzilla.redhat.com/show_bug.cgi?id=2011247 --------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2021-829f5f2f43' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/security/ --------------------------------------------------------------------------------_______________________________________________ package-announce mailing list --
PCI devices with RMRRs not deassigned correctly [XSA-386, CVE-2021-28702] (#2011248). --------------------------------------------------------------------------------Fedora Update Notification FEDORA-2021-0b7a484688 2021-10-15 18:53:33.324102 --------------------------------------------------------------------------------Name : xen Product : Fedora 33 Version : 4.14.3 Release : 2.fc33 URL : https://xenproject.org/ Summary : Xen is a virtual machine monitor Description : This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor --------------------------------------------------------------------------------Update Information: PCI devices with RMRRs not deassigned correctly [XSA-386, CVE-2021-28702] (#2011248) --------------------------------------------------------------------------------ChangeLog: * Wed Oct 6 2021 Michael Young - 4.14.3-2 - PCI devices with RMRRs not deassigned correctly [XSA-386, CVE-2021-28702] (#2011248) --------------------------------------------------------------------------------References: [ 1 ] Bug #2011247 - CVE-2021-28702 xen: administrators of guests which have been assigned RMRR-using PCI devices can cause DoS https://bugzilla.redhat.com/show_bug.cgi?id=2011247 --------------------------------------------------------------------------------This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2021-0b7a484688' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/security/ --------------------------------------------------------------------------------_______________________________________________ package-announce mailing list
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