RHSA-2026:24349MediumCVSS 5.0

Red Hat Security Advisory: libssh security update

Published
June 8, 2026
Last Modified
September 1, 2026

🔗 CVE IDs covered (1)

CVE-2025-5372 →

📋 Description

CVE-2025-5372 — libssh: Incorrect Return Code Handling in ssh_kdf() in libssh

🎯 Affected products32

  • Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-0:0.9.4-2.el8_4.2.src as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-0:0.9.4-2.el8_4.2.src as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-config-0:0.9.4-2.el8_4.2.noarch as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-config-0:0.9.4-2.el8_4.2.noarch as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-debuginfo-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS AUS (v.8.4)
  • libssh-debugsource-0:0.9.4-2.el8_4.2.x86_64 as a component of Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)
  • libssh-devel-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux AppStream AUS (v.8.4)
  • libssh-devel-0:0.9.4-2.el8_4.2.i686 as a component of Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)
  • +2 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: To mitigate this issue, administrators should ensure that libssh is built against OpenSSL version 3.0 or later. This change eliminates the return code mismatch and prevents the erroneous use of uninitialized key material. It is also strongly recommended to apply vendor supplied patches or update to the latest libssh security release as soon as possible.

🔗 References (4)