Security update for libssh

Announcement ID:	SUSE-SU-2025:02279-1
Release Date:	2025-07-10T16:03:27Z
Rating:	important
References:	bsc#1245309 bsc#1245310 bsc#1245311 bsc#1245314
Cross-References:	CVE-2025-4877 CVE-2025-4878 CVE-2025-5318 CVE-2025-5372
CVSS scores:	CVE-2025-4877 ( SUSE ): 2.0 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVE-2025-4877 ( SUSE ): 4.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L CVE-2025-4878 ( SUSE ): 2.0 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVE-2025-4878 ( SUSE ): 3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVE-2025-5318 ( SUSE ): 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVE-2025-5318 ( SUSE ): 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVE-2025-5318 ( NVD ): 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N CVE-2025-5372 ( SUSE ): 7.6 CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N CVE-2025-5372 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L CVE-2025-5372 ( NVD ): 5.0 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
Affected Products:	SUSE Enterprise Storage 7.1 SUSE Linux Enterprise High Performance Computing 15 SP3 SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 SUSE Linux Enterprise Micro 5.1 SUSE Linux Enterprise Micro 5.2 SUSE Linux Enterprise Micro for Rancher 5.2 SUSE Linux Enterprise Server 15 SP3 SUSE Linux Enterprise Server 15 SP3 LTSS SUSE Linux Enterprise Server for SAP Applications 15 SP3

An update that solves four vulnerabilities can now be installed.

Description:

This update for libssh fixes the following issues:

• CVE-2025-4877: Fixed write beyond bounds in binary to base64 conversion functions (bsc#1245309).
• CVE-2025-4878: Fixed use of uninitialized variable in privatekey_from_file() (bsc#1245310).
• CVE-2025-5318: Fixed likely read beyond bounds in sftp server handle management (bsc#1245311).
• CVE-2025-5372: Fixed ssh_kdf() returns a success code on certain failures (bsc#1245314).

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 for SAP Applications 15 SP3
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP3-2025-2279=1
• SUSE Enterprise Storage 7.1
  zypper in -t patch SUSE-Storage-7.1-2025-2279=1
• SUSE Linux Enterprise Micro 5.1
  zypper in -t patch SUSE-SUSE-MicroOS-5.1-2025-2279=1
• SUSE Linux Enterprise Micro 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2025-2279=1
• SUSE Linux Enterprise Micro for Rancher 5.2
  zypper in -t patch SUSE-SUSE-MicroOS-5.2-2025-2279=1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3
  zypper in -t patch SUSE-SLE-Product-HPC-15-SP3-LTSS-2025-2279=1
• SUSE Linux Enterprise Server 15 SP3 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP3-LTSS-2025-2279=1

Package List:

• SUSE Linux Enterprise Server for SAP Applications 15 SP3 (ppc64le x86_64)
  • libssh4-0.9.8-150200.13.9.1
  • libssh-config-0.9.8-150200.13.9.1
  • libssh-debugsource-0.9.8-150200.13.9.1
  • libssh4-debuginfo-0.9.8-150200.13.9.1
  • libssh-devel-0.9.8-150200.13.9.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP3 (x86_64)
  • libssh4-32bit-debuginfo-0.9.8-150200.13.9.1
  • libssh4-32bit-0.9.8-150200.13.9.1
• SUSE Enterprise Storage 7.1 (aarch64 x86_64)
  • libssh4-0.9.8-150200.13.9.1
  • libssh-config-0.9.8-150200.13.9.1
  • libssh-debugsource-0.9.8-150200.13.9.1
  • libssh4-debuginfo-0.9.8-150200.13.9.1
  • libssh-devel-0.9.8-150200.13.9.1
• SUSE Enterprise Storage 7.1 (x86_64)
  • libssh4-32bit-debuginfo-0.9.8-150200.13.9.1
  • libssh4-32bit-0.9.8-150200.13.9.1
• SUSE Linux Enterprise Micro 5.1 (aarch64 s390x x86_64)
  • libssh-debugsource-0.9.8-150200.13.9.1
  • libssh4-0.9.8-150200.13.9.1
  • libssh-config-0.9.8-150200.13.9.1
  • libssh4-debuginfo-0.9.8-150200.13.9.1
• SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
  • libssh-debugsource-0.9.8-150200.13.9.1
  • libssh4-0.9.8-150200.13.9.1
  • libssh-config-0.9.8-150200.13.9.1
  • libssh4-debuginfo-0.9.8-150200.13.9.1
• SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
  • libssh-debugsource-0.9.8-150200.13.9.1
  • libssh4-0.9.8-150200.13.9.1
  • libssh-config-0.9.8-150200.13.9.1
  • libssh4-debuginfo-0.9.8-150200.13.9.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (aarch64 x86_64)
  • libssh4-0.9.8-150200.13.9.1
  • libssh-config-0.9.8-150200.13.9.1
  • libssh-debugsource-0.9.8-150200.13.9.1
  • libssh4-debuginfo-0.9.8-150200.13.9.1
  • libssh-devel-0.9.8-150200.13.9.1
• SUSE Linux Enterprise High Performance Computing LTSS 15 SP3 (x86_64)
  • libssh4-32bit-debuginfo-0.9.8-150200.13.9.1
  • libssh4-32bit-0.9.8-150200.13.9.1
• SUSE Linux Enterprise Server 15 SP3 LTSS (aarch64 ppc64le s390x x86_64)
  • libssh4-0.9.8-150200.13.9.1
  • libssh-config-0.9.8-150200.13.9.1
  • libssh-debugsource-0.9.8-150200.13.9.1
  • libssh4-debuginfo-0.9.8-150200.13.9.1
  • libssh-devel-0.9.8-150200.13.9.1
• SUSE Linux Enterprise Server 15 SP3 LTSS (x86_64)
  • libssh4-32bit-debuginfo-0.9.8-150200.13.9.1
  • libssh4-32bit-0.9.8-150200.13.9.1

References:

• https://www.suse.com/security/cve/CVE-2025-4877.html
• https://www.suse.com/security/cve/CVE-2025-4878.html
• https://www.suse.com/security/cve/CVE-2025-5318.html
• https://www.suse.com/security/cve/CVE-2025-5372.html
• https://bugzilla.suse.com/show_bug.cgi?id=1245309
• https://bugzilla.suse.com/show_bug.cgi?id=1245310
• https://bugzilla.suse.com/show_bug.cgi?id=1245311
• https://bugzilla.suse.com/show_bug.cgi?id=1245314