SUSE-SU-2026:4614-1: moderate: Security update for openssh8.4

[SLE-SECURITY-UPDATES]

# Security update for openssh8.4

Announcement ID: SUSE-SU-2026:4614-1  
Release Date: 2026-10-12T07:20:10Z  
Rating: moderate  
References:

  * bsc#1275074
  * bsc#1275079

  
Cross-References:

  * CVE-2026-73282
  * CVE-2026-73283

  
CVSS scores:

  * CVE-2026-73282 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-73282 ( SUSE ):  5.6 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
  * CVE-2026-73282 ( NVD ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-73283 ( SUSE ):  2.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-73283 ( SUSE ):  4.2 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-73283 ( NVD ):  2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

  
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 two vulnerabilities can now be installed.

## Description:

This update for openssh8.4 fixes the following issues:

  * CVE-2026-73282: unsynchronized remote forwarding updates in SSH client
    multiplexing can cause use-after-free (bsc#1275074).
  * CVE-2026-73283: unenforced restriction keywords on tunnel forwarding can
    allow administrative security policy bypasses (bsc#1275079).

## 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  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-2026-4614

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-4614

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * openssh8.4-helpers-debuginfo-8.4p1-8.27.1
    * openssh8.4-debugsource-8.4p1-8.27.1
    * openssh8.4-fips-8.4p1-8.27.1
    * openssh8.4-common-debuginfo-8.4p1-8.27.1
    * openssh8.4-8.4p1-8.27.1
    * openssh8.4-server-8.4p1-8.27.1
    * openssh8.4-clients-8.4p1-8.27.1
    * openssh8.4-server-debuginfo-8.4p1-8.27.1
    * openssh8.4-clients-debuginfo-8.4p1-8.27.1
    * openssh8.4-helpers-8.4p1-8.27.1
    * openssh8.4-common-8.4p1-8.27.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * openssh8.4-helpers-debuginfo-8.4p1-8.27.1
    * openssh8.4-debugsource-8.4p1-8.27.1
    * openssh8.4-fips-8.4p1-8.27.1
    * openssh8.4-common-debuginfo-8.4p1-8.27.1
    * openssh8.4-8.4p1-8.27.1
    * openssh8.4-server-8.4p1-8.27.1
    * openssh8.4-clients-8.4p1-8.27.1
    * openssh8.4-server-debuginfo-8.4p1-8.27.1
    * openssh8.4-clients-debuginfo-8.4p1-8.27.1
    * openssh8.4-helpers-8.4p1-8.27.1
    * openssh8.4-common-8.4p1-8.27.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-73282.html
  * https://www.suse.com/security/cve/CVE-2026-73283.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1275074
  * https://bugzilla.suse.com/show_bug.cgi?id=1275079

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