Security update for libssh

Announcement ID: SUSE-SU-2026:0936-1
Release Date: 2026-03-20T07:46:48Z
Rating: moderate
References:
Cross-References:
CVSS scores:
  • CVE-2026-3731 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  • CVE-2026-3731 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • CVE-2026-3731 ( NVD ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  • CVE-2026-3731 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2026-3731 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products:
  • SUSE Linux Enterprise Micro 5.2
  • SUSE Linux Enterprise Micro for Rancher 5.2

An update that solves one vulnerability can now be installed.

Description:

This update for libssh fixes the following issues:

  • CVE-2026-3731: Denial of Service via out-of-bounds read in SFTP extension name handler (bsc#1259377).

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 Micro 5.2
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-936=1
  • SUSE Linux Enterprise Micro for Rancher 5.2
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-936=1

Package List:

  • SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
    • libssh-debugsource-0.9.8-150200.13.18.1
    • libssh-config-0.9.8-150200.13.18.1
    • libssh4-debuginfo-0.9.8-150200.13.18.1
    • libssh4-0.9.8-150200.13.18.1
  • SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
    • libssh-debugsource-0.9.8-150200.13.18.1
    • libssh-config-0.9.8-150200.13.18.1
    • libssh4-debuginfo-0.9.8-150200.13.18.1
    • libssh4-0.9.8-150200.13.18.1

References: