Security update for libssh

Announcement ID: SUSE-SU-2025:03368-1
Release Date: 2025-09-26T10:53:34Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2025-8114 ( SUSE ): 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-8114 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-8114 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-8114 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-8277 ( SUSE ): 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
  • CVE-2025-8277 ( NVD ): 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
Affected Products:
  • SUSE Linux Enterprise Server 12 SP5
  • 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 libssh fixes the following issues:

  • CVE-2025-8277: memory exhaustion leading to client-side DoS due to improper memory management when KEX process is repeated with incorrect guesses (bsc#1249375).
  • CVE-2025-8114: NULL pointer dereference when an allocation error happens during the calculation of the KEX session ID (bsc#1246974).

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-2025-3368=1

Package List:

  • SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    • libssh-devel-0.9.8-3.18.1
    • libssh4-debuginfo-0.9.8-3.18.1
    • libssh4-debuginfo-32bit-0.9.8-3.18.1
    • libssh-debugsource-0.9.8-3.18.1
    • libssh4-32bit-0.9.8-3.18.1
    • libssh4-0.9.8-3.18.1
    • libssh-config-0.9.8-3.18.1

References: