{"id":"CVE-2024-27355","aliases":["GHSA-f2qx-66wf-wvvx"],"url":"https://o3.security/vulnerability/CVE-2024-27355","summary":"phpseclib guardrails needed on OID length","details":"An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When processing the ASN.1 object identifier of a certificate, a sub identifier may be provided that leads to a denial of service (CPU consumption for decodeOID).","published":"2024-03-01T00:00:00Z","modified":"2026-08-07T11:50:22.466163405Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"phpseclib/phpseclib","fixedVersion":"2.0.47"},{"ecosystem":"Packagist","name":"phpseclib/phpseclib","fixedVersion":"3.0.36"},{"ecosystem":"Packagist","name":"phpseclib/phpseclib","fixedVersion":"1.0.23"}],"fix":null,"references":[{"type":"WEB","url":"https://gist.github.com/katzj/ee72f3c2a00590812b2ea3c0c8890e0b"},{"type":"WEB","url":"https://github.com/phpseclib/phpseclib/blob/978d081fe50ff92879c50ff143c62a143edb0117/phpseclib/File/ASN1.php#L1129"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27355.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-27355"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2024/03/msg00002.html"},{"type":"ARTICLE","url":"https://lists.debian.org/debian-lts-announce/2024/03/msg00003.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T11:50:22.466163405Z"}}