SUSE alert SUSE-SU-2026:3451-1 (xen)

From:
             
 
SLE-SECURITY-UPDATES <null@suse.de>
To:
             
 
sle-security-updates@lists.suse.com
Subject:
             
 
SUSE-SU-2026:3451-1: important: Security update for xen
Date:
             
 
Mon, 03 Aug 2026 17:06:01 -0000
Message-ID:
             
 
<178577676149.66.15430767479270765993@438c6482d549>
# Security update for xen

Announcement ID: SUSE-SU-2026:3451-1  
Release Date: 2026-08-03T11:33:32Z  
Rating: important  
References:

  * bsc#1271528
  * bsc#1271530
  * bsc#1271531
  * bsc#1271532
  * bsc#1271533
  * bsc#1271534
  * bsc#1271535
  * bsc#1271537
  * bsc#1271538
  * bsc#1271539
  * bsc#1271947

  
Cross-References:

  * CVE-2026-42493
  * CVE-2026-42494
  * CVE-2026-42495
  * CVE-2026-62423
  * CVE-2026-62424
  * CVE-2026-62425
  * CVE-2026-62426
  * CVE-2026-62427
  * CVE-2026-62428
  * CVE-2026-62429
  * CVE-2026-62430
  * CVE-2026-62432
  * CVE-2026-62433
  * CVE-2026-62434

  
CVSS scores:

  * CVE-2026-42493 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
  * CVE-2026-42493 ( SUSE ):  5.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
  * CVE-2026-42493 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-42494 ( SUSE ):  8.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-42494 ( SUSE ):  8.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-42494 ( NVD ):  6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
  * CVE-2026-42495 ( SUSE ):  8.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-42495 ( SUSE ):  8.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-42495 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-62423 ( SUSE ):  8.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-62423 ( SUSE ):  8.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-62423 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-62424 ( SUSE ):  8.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-62424 ( SUSE ):  8.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-62424 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-62425 ( SUSE ):  8.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-62425 ( SUSE ):  8.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-62425 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-62426 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
  * CVE-2026-62426 ( SUSE ):  5.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
  * CVE-2026-62426 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-62427 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
  * CVE-2026-62427 ( SUSE ):  5.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
  * CVE-2026-62427 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-62428 ( SUSE ):  8.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
  * CVE-2026-62428 ( SUSE ):  8.1 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-62428 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-62429 ( SUSE ):  7.1
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:L/SI:L/SA:H
  * CVE-2026-62429 ( SUSE ):  7.3 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H
  * CVE-2026-62429 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-62430 ( SUSE ):  2.1
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-62430 ( SUSE ):  2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-62430 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-62432 ( SUSE ):  8.4
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:L/SI:L/SA:H
  * CVE-2026-62432 ( SUSE ):  8.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
  * CVE-2026-62432 ( NVD ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-62433 ( SUSE ):  6.9
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
  * CVE-2026-62433 ( SUSE ):  5.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N
  * CVE-2026-62433 ( NVD ):  7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-62434 ( SUSE ):  7.1
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:L/SI:L/SA:H
  * CVE-2026-62434 ( SUSE ):  7.3 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H
  * CVE-2026-62434 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

  
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 14 vulnerabilities can now be installed.

## Description:

This update for xen fixes the following issues

  * CVE-2026-42493: x86 shadow paging is deprecated (bsc#1271528).
  * CVE-2026-42494,CVE-2026-42495,CVE-2026-62423,CVE-2026-62424,CVE-2026-62425:
    buffer overruns in libfsimage iso9660 handling (bsc#1271530).
  * CVE-2026-62426,CVE-2026-62427: sysctl and platform-op locks open to abuse
    (bsc#1271531).
  * CVE-2026-62428: grant-table: type confusion in grant-copy (bsc#1271532).
  * CVE-2026-62429: vNUMA domain cleanup may race other operations
    (bsc#1271534).
  * CVE-2026-62430: x86: out-of-bounds read in vRTC emulation (bsc#1271535).
  * CVE-2026-62432: evtchn: race between FIFO expand and reset (bsc#1271537).
  * CVE-2026-62433: correct buffer checks for DM_OP hypercalls (bsc#1271538).
  * CVE-2026-62434: PoD: don't try to reclaim special pages (bsc#1271539).
  * Pygrub is only supported in de-privileged mode (XSA-508) (bsc#1271947).

## 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 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-3451=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-3451=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * xen-tools-4.12.4_72-3.148.4
    * xen-tools-debuginfo-4.12.4_72-3.148.4
    * xen-tools-domU-debuginfo-4.12.4_72-3.148.4
    * xen-libs-32bit-4.12.4_72-3.148.4
    * xen-libs-debuginfo-4.12.4_72-3.148.4
    * xen-libs-debuginfo-32bit-4.12.4_72-3.148.4
    * xen-devel-4.12.4_72-3.148.4
    * xen-libs-4.12.4_72-3.148.4
    * xen-tools-domU-4.12.4_72-3.148.4
    * xen-debugsource-4.12.4_72-3.148.4
    * xen-doc-html-4.12.4_72-3.148.4
    * xen-4.12.4_72-3.148.4
  * SUSE Linux Enterprise Server 12 SP5 LTSS (x86_64)
    * xen-tools-4.12.4_72-3.148.4
    * xen-tools-debuginfo-4.12.4_72-3.148.4
    * xen-tools-domU-debuginfo-4.12.4_72-3.148.4
    * xen-libs-32bit-4.12.4_72-3.148.4
    * xen-libs-debuginfo-4.12.4_72-3.148.4
    * xen-libs-4.12.4_72-3.148.4
    * xen-libs-debuginfo-32bit-4.12.4_72-3.148.4
    * xen-devel-4.12.4_72-3.148.4
    * xen-4.12.4_72-3.148.4
    * xen-tools-domU-4.12.4_72-3.148.4
    * xen-debugsource-4.12.4_72-3.148.4
    * xen-doc-html-4.12.4_72-3.148.4

## References:

  * https://www.suse.com/security/cve/CVE-2026-42493.html
  * https://www.suse.com/security/cve/CVE-2026-42494.html
  * https://www.suse.com/security/cve/CVE-2026-42495.html
  * https://www.suse.com/security/cve/CVE-2026-62423.html
  * https://www.suse.com/security/cve/CVE-2026-62424.html
  * https://www.suse.com/security/cve/CVE-2026-62425.html
  * https://www.suse.com/security/cve/CVE-2026-62426.html
  * https://www.suse.com/security/cve/CVE-2026-62427.html
  * https://www.suse.com/security/cve/CVE-2026-62428.html
  * https://www.suse.com/security/cve/CVE-2026-62429.html
  * https://www.suse.com/security/cve/CVE-2026-62430.html
  * https://www.suse.com/security/cve/CVE-2026-62432.html
  * https://www.suse.com/security/cve/CVE-2026-62433.html
  * https://www.suse.com/security/cve/CVE-2026-62434.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1271528
  * https://bugzilla.suse.com/show_bug.cgi?id=1271530
  * https://bugzilla.suse.com/show_bug.cgi?id=1271531
  * https://bugzilla.suse.com/show_bug.cgi?id=1271532
  * https://bugzilla.suse.com/show_bug.cgi?id=1271533
  * https://bugzilla.suse.com/show_bug.cgi?id=1271534
  * https://bugzilla.suse.com/show_bug.cgi?id=1271535
  * https://bugzilla.suse.com/show_bug.cgi?id=1271537
  * https://bugzilla.suse.com/show_bug.cgi?id=1271538
  * https://bugzilla.suse.com/show_bug.cgi?id=1271539
  * https://bugzilla.suse.com/show_bug.cgi?id=1271947



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