SUSE-SU-2025:4098-1: moderate: Security update for openssh8.4

[SLE-SECURITY-UPDATES]

# Security update for openssh8.4

Announcement ID: SUSE-SU-2025:4098-1  
Release Date: 2025-11-14T08:22:54Z  
Rating: moderate  
References:

  * bsc#1251198
  * bsc#1251199

  
Cross-References:

  * CVE-2025-61984
  * CVE-2025-61985

  
CVSS scores:

  * CVE-2025-61984 ( SUSE ):  2.0
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-61984 ( SUSE ):  5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  * CVE-2025-61984 ( NVD ):  3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2025-61985 ( SUSE ):  2.0
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-61985 ( SUSE ):  5.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  * CVE-2025-61985 ( NVD ):  3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/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-2025-61984: Fixed code execution via control characters in usernames
    when a ProxyCommand is used (bsc#1251198)
  * CVE-2025-61985: Fixed code execution via '\0' character in ssh:// URI when a
    ProxyCommand is used (bsc#1251199)

## 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-2025-4098=1

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2025-4098=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * openssh8.4-server-debuginfo-8.4p1-8.19.1
    * openssh8.4-helpers-debuginfo-8.4p1-8.19.1
    * openssh8.4-fips-8.4p1-8.19.1
    * openssh8.4-common-8.4p1-8.19.1
    * openssh8.4-helpers-8.4p1-8.19.1
    * openssh8.4-clients-8.4p1-8.19.1
    * openssh8.4-server-8.4p1-8.19.1
    * openssh8.4-8.4p1-8.19.1
    * openssh8.4-debugsource-8.4p1-8.19.1
    * openssh8.4-common-debuginfo-8.4p1-8.19.1
    * openssh8.4-clients-debuginfo-8.4p1-8.19.1
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * openssh8.4-server-debuginfo-8.4p1-8.19.1
    * openssh8.4-helpers-debuginfo-8.4p1-8.19.1
    * openssh8.4-fips-8.4p1-8.19.1
    * openssh8.4-common-8.4p1-8.19.1
    * openssh8.4-helpers-8.4p1-8.19.1
    * openssh8.4-clients-8.4p1-8.19.1
    * openssh8.4-server-8.4p1-8.19.1
    * openssh8.4-8.4p1-8.19.1
    * openssh8.4-debugsource-8.4p1-8.19.1
    * openssh8.4-common-debuginfo-8.4p1-8.19.1
    * openssh8.4-clients-debuginfo-8.4p1-8.19.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-61984.html
  * https://www.suse.com/security/cve/CVE-2025-61985.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1251198
  * https://bugzilla.suse.com/show_bug.cgi?id=1251199

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