Security update for libssh SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:20894-1 Final 1 1 2025-10-20T16:31:28Z current 2025-10-20T16:31:28Z 2025-10-20T16:31:28Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for libssh This update for libssh fixes the following issues: - CVE-2025-8114: Fixed NULL pointer dereference when calculating the session ID during the key exchange (KEX) process (bsc#1246974) - CVE-2025-8277: Fixed Memory Exhaustion via Repeated Key Exchange (bsc#1249375) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.1-309 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-202520894-1/ Link for SUSE-SU-2025:20894-1 https://lists.suse.com/pipermail/sle-security-updates/2025-October/023120.html E-Mail link for SUSE-SU-2025:20894-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1246974 SUSE Bug 1246974 https://bugzilla.suse.com/1249375 SUSE Bug 1249375 https://www.suse.com/security/cve/CVE-2025-8114/ SUSE CVE CVE-2025-8114 page https://www.suse.com/security/cve/CVE-2025-8277/ SUSE CVE CVE-2025-8277 page SUSE Linux Micro 6.1 libssh-config-0.10.6-slfo.1.1_3.1 libssh4-0.10.6-slfo.1.1_3.1 libssh-config-0.10.6-slfo.1.1_3.1 as a component of SUSE Linux Micro 6.1 libssh4-0.10.6-slfo.1.1_3.1 as a component of SUSE Linux Micro 6.1 A flaw was found in libssh, a library that implements the SSH protocol. When calculating the session ID during the key exchange (KEX) process, an allocation failure in cryptographic functions may lead to a NULL pointer dereference. This issue can cause the client or server to crash. CVE-2025-8114 SUSE Linux Micro 6.1:libssh-config-0.10.6-slfo.1.1_3.1 SUSE Linux Micro 6.1:libssh4-0.10.6-slfo.1.1_3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520894-1/ https://www.suse.com/security/cve/CVE-2025-8114.html CVE-2025-8114 https://bugzilla.suse.com/1246974 SUSE Bug 1246974 A flaw was found in libssh's handling of key exchange (KEX) processes when a client repeatedly sends incorrect KEX guesses. The library fails to free memory during these rekey operations, which can gradually exhaust system memory. This issue can lead to crashes on the client side, particularly when using libgcrypt, which impacts application stability and availability. CVE-2025-8277 SUSE Linux Micro 6.1:libssh-config-0.10.6-slfo.1.1_3.1 SUSE Linux Micro 6.1:libssh4-0.10.6-slfo.1.1_3.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520894-1/ https://www.suse.com/security/cve/CVE-2025-8277.html CVE-2025-8277 https://bugzilla.suse.com/1249375 SUSE Bug 1249375