{"id":"CVE-2025-5351","title":"A flaw was found in the key export functionality of libssh","summary":"A flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not clear…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-415"],"vendor":"libssh","product":"libssh","affected":["libssh >= 0.10.0, < 0.11.2","openshift_container_platform = 4.0","enterprise_linux = 6.0","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","enterprise_linux = 10.0"],"patched":["libssh 0.11.2"],"published":"2025-07-04","updated":"2026-06-25","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-5351","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:18683","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2025-5351","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2369367","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.0053,"epssPercentile":0.43784,"ingestedAt":"2026-06-29T13:24:34.384Z","slug":"CVE-2025-5351","body":"## Overview\n\nA flaw was found in the key export functionality of libssh. The issue occurs in the internal function responsible for converting cryptographic keys into serialized formats. During error handling, a memory structure is freed but not cleared, leading to a potential double free issue if an additional failure occurs later in the function. This condition may result in heap corruption or application instability in low-memory scenarios, posing a risk to system reliability where key export operations are performed.\n\n## Affected\n\n- `libssh >= 0.10.0, < 0.11.2`\n- `openshift_container_platform = 4.0`\n- `enterprise_linux = 6.0`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `enterprise_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `libssh 0.11.2`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}