Red Hat Security Advisory: libssh security update
🔗 CVE IDs covered (10)
📋 Description
CVE-2025-4877 — libssh: Write beyond bounds in binary to base64 conversion functions CVE-2025-4878 — libssh: Use of uninitialized variable in privatekey_from_file() CVE-2025-5351 — libssh: Double Free Vulnerability in libssh Key Export Functions CVE-2025-8114 — libssh: NULL Pointer Dereference in libssh KEX Session ID Calculation CVE-2025-8277 — libssh: Memory Exhaustion via Repeated Key Exchange in libssh CVE-2026-0964 — libssh: Improper sanitation of paths received from SCP servers CVE-2026-0965 — libssh: libssh: Denial of Service via improper configuration file handling CVE-2026-0966 — libssh: libssh: Denial of Service via zero-length input in ssh_get_hexa() CVE-2026-0967 — libssh: libssh: Denial of Service via inefficient regular expression processing CVE-2026-0968 — libssh: libssh: Denial of Service due to malformed SFTP message
🔗 References (15)
- selfhttps://access.redhat.com/errata/RHSA-2026:18683
- externalhttps://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.8_release_notes/index
- externalhttps://access.redhat.com/security/updates/classification/#moderate
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2369367
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2376184
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2376193
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2383220
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2383888
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2433121
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2436979
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2436980
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2436981
- externalhttps://bugzilla.redhat.com/show_bug.cgi?id=2436982
- externalhttps://issues.redhat.com/browse/RHEL-150661
- selfhttps://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_18683.json