SUSE-SU-2026:2931-1: moderate: Security update for libslirp

[SLE-UPDATES]

# Security update for libslirp

Announcement ID: SUSE-SU-2026:2931-1  
Release Date: 2026-07-13T18:43:58Z  
Rating: moderate  
References:

  * bsc#1268903

  
Cross-References:

  * CVE-2026-9539

  
CVSS scores:

  * CVE-2026-9539 ( SUSE ):  6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
  * CVE-2026-9539 ( NVD ):  6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

  
Affected Products:

  * Basesystem Module 15-SP7
  * openSUSE Leap 15.5
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Micro 5.5
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for libslirp fixes the following issues:

  * CVE-2026-9539: TCP URG out of bounds heap read information leak
    (bsc#1268903).

## 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:

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2931=1

  * SUSE Linux Enterprise Micro 5.5  
    zypper in -t patch SUSE-SLE-Micro-5.5-2026-2931=1

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-2931=1

## Package List:

  * openSUSE Leap 15.5 (aarch64 i586 ppc64le s390x x86_64)
    * libslirp-devel-4.7.0+44-150500.4.3.1
    * libslirp-debugsource-4.7.0+44-150500.4.3.1
    * libslirp0-debuginfo-4.7.0+44-150500.4.3.1
    * libslirp0-4.7.0+44-150500.4.3.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * libslirp-devel-4.7.0+44-150500.4.3.1
    * libslirp0-debuginfo-4.7.0+44-150500.4.3.1
    * libslirp0-4.7.0+44-150500.4.3.1
    * libslirp-debugsource-4.7.0+44-150500.4.3.1
  * SUSE Linux Enterprise Micro 5.5 (aarch64 ppc64le s390x x86_64)
    * libslirp0-4.7.0+44-150500.4.3.1
    * libslirp-debugsource-4.7.0+44-150500.4.3.1
    * libslirp0-debuginfo-4.7.0+44-150500.4.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-9539.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268903

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