SUSE-SU-2026:5140-1: important: Security update for xen
SLE-SECURITY-UPDATES
null at suse.de
Mon Nov 9 20:31:06 UTC 2026
# Security update for xen
Announcement ID: SUSE-SU-2026:5140-1
Release Date: 2026-11-09T13:24:47Z
Rating: important
References:
* bsc#1027519
* bsc#1276838
* bsc#1276839
* bsc#1276841
* bsc#1283321
* bsc#1283322
* bsc#1283323
* bsc#1283325
* bsc#1288663
Cross-References:
* CVE-2026-102700
* CVE-2026-102703
* CVE-2026-102704
* CVE-2026-62437
* CVE-2026-79602
* CVE-2026-79603
* CVE-2026-79609
* CVE-2026-79610
* CVE-2026-79611
CVSS scores:
* CVE-2026-102700 ( SUSE ): 5.7
CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-102700 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-102700 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-102703 ( SUSE ): 8.4
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-102703 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-102703 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
* CVE-2026-102704 ( SUSE ): 8.4
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-102704 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-102704 ( NVD ): 4.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
* CVE-2026-62437 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
* CVE-2026-62437 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
* CVE-2026-79602 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
* CVE-2026-79602 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-79603 ( SUSE ): 5.2 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
* CVE-2026-79603 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-79609 ( SUSE ): 9.3
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
* CVE-2026-79609 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-79609 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-79610 ( SUSE ): 9.3
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
* CVE-2026-79610 ( SUSE ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-79610 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-79611 ( SUSE ): 6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-79611 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-79611 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 nine vulnerabilities can now be installed.
## Description:
This update for xen fixes the following issues:
Security issues fixed:
* CVE-2026-62437: x86: DMs may cause mem leak by IRQ binding (bsc#1276838).
* CVE-2026-79602: x86: improper handling of HVM emulation return codes
(bsc#1276839).
* CVE-2026-79603: unconditionally do TLB flushing ahead of page scrubbing
(bsc#1276841).
* CVE-2026-79609: x86: XPTI may break on huge-memory systems (bsc#1283321).
* CVE-2026-79610: grant-table: double version change race (bsc#1283322).
* CVE-2026-79611: VMX: VMentry failure with branch tracing and blocked states
(bsc#1283323).
* CVE-2026-102700: gnttab: cache-flush handling may cause page reference leak
(bsc#1283325).
* CVE-2026-102703,CVE-2026-102704: arbitrary read/write via grant copy
(bsc#1288663).
Non security issue fixed:
* Update to Xen 4.18.6 security bug fix release (bsc#1027519).
## 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:
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-5140
* openSUSE Leap 15.6
zypper in -t patch SUSE-2026-5140
* SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-5140
## Package List:
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
* xen-libs-debuginfo-4.18.6_03-150600.3.56.1
* xen-tools-domU-debuginfo-4.18.6_03-150600.3.56.1
* xen-4.18.6_03-150600.3.56.1
* xen-tools-4.18.6_03-150600.3.56.1
* xen-tools-domU-4.18.6_03-150600.3.56.1
* xen-debugsource-4.18.6_03-150600.3.56.1
* xen-tools-debuginfo-4.18.6_03-150600.3.56.1
* xen-libs-4.18.6_03-150600.3.56.1
* xen-devel-4.18.6_03-150600.3.56.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
* xen-tools-xendomains-wait-disk-4.18.6_03-150600.3.56.1
* openSUSE Leap 15.6 (x86_64)
* xen-libs-32bit-4.18.6_03-150600.3.56.1
* xen-4.18.6_03-150600.3.56.1
* xen-tools-4.18.6_03-150600.3.56.1
* xen-libs-32bit-debuginfo-4.18.6_03-150600.3.56.1
* xen-tools-debuginfo-4.18.6_03-150600.3.56.1
* xen-doc-html-4.18.6_03-150600.3.56.1
* openSUSE Leap 15.6 (i586 x86_64)
* xen-libs-debuginfo-4.18.6_03-150600.3.56.1
* xen-tools-domU-debuginfo-4.18.6_03-150600.3.56.1
* xen-tools-domU-4.18.6_03-150600.3.56.1
* xen-debugsource-4.18.6_03-150600.3.56.1
* xen-libs-4.18.6_03-150600.3.56.1
* xen-devel-4.18.6_03-150600.3.56.1
* openSUSE Leap 15.6 (noarch)
* xen-tools-xendomains-wait-disk-4.18.6_03-150600.3.56.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
* xen-libs-debuginfo-4.18.6_03-150600.3.56.1
* xen-tools-domU-debuginfo-4.18.6_03-150600.3.56.1
* xen-4.18.6_03-150600.3.56.1
* xen-tools-4.18.6_03-150600.3.56.1
* xen-tools-domU-4.18.6_03-150600.3.56.1
* xen-debugsource-4.18.6_03-150600.3.56.1
* xen-tools-debuginfo-4.18.6_03-150600.3.56.1
* xen-libs-4.18.6_03-150600.3.56.1
* xen-devel-4.18.6_03-150600.3.56.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
* xen-tools-xendomains-wait-disk-4.18.6_03-150600.3.56.1
## References:
* https://www.suse.com/security/cve/CVE-2026-102700.html
* https://www.suse.com/security/cve/CVE-2026-102703.html
* https://www.suse.com/security/cve/CVE-2026-102704.html
* https://www.suse.com/security/cve/CVE-2026-62437.html
* https://www.suse.com/security/cve/CVE-2026-79602.html
* https://www.suse.com/security/cve/CVE-2026-79603.html
* https://www.suse.com/security/cve/CVE-2026-79609.html
* https://www.suse.com/security/cve/CVE-2026-79610.html
* https://www.suse.com/security/cve/CVE-2026-79611.html
* https://bugzilla.suse.com/show_bug.cgi?id=1027519
* https://bugzilla.suse.com/show_bug.cgi?id=1276838
* https://bugzilla.suse.com/show_bug.cgi?id=1276839
* https://bugzilla.suse.com/show_bug.cgi?id=1276841
* https://bugzilla.suse.com/show_bug.cgi?id=1283321
* https://bugzilla.suse.com/show_bug.cgi?id=1283322
* https://bugzilla.suse.com/show_bug.cgi?id=1283323
* https://bugzilla.suse.com/show_bug.cgi?id=1283325
* https://bugzilla.suse.com/show_bug.cgi?id=1288663
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