{"id":"CVE-2022-2127","title":"Samba: out-of-bounds read in winbind auth_crap","summary":"An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies h…","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-125"],"vendor":"Red Hat","product":"samba","affected":["samba (all versions)","samba (all versions)","samba (all versions)","samba (all versions)","samba (all versions)","samba (all versions)","samba (all versions)","samba","samba4","samba","samba"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2024-12-03T15:21:45.923934Z"},"published":"2023-07-20","updated":"2026-11-05","sourceUpdated":"2026-11-05T08:57:19.229Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-2127","references":[{"url":"https://access.redhat.com/errata/RHSA-2023:6667","label":"RHSA-2023:6667"},{"url":"https://access.redhat.com/errata/RHSA-2023:7139","label":"RHSA-2023:7139"},{"url":"https://access.redhat.com/errata/RHSA-2024:0423","label":"RHSA-2024:0423"},{"url":"https://access.redhat.com/errata/RHSA-2024:0580","label":"RHSA-2024:0580"},{"url":"https://access.redhat.com/security/cve/CVE-2022-2127"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2222791","label":"RHBZ#2222791"},{"url":"https://www.samba.org/samba/security/CVE-2022-2127.html"}],"tags":["cve.org"],"epss":0.01722,"epssPercentile":0.77563,"ingestedAt":"2026-11-05T21:36:00.798Z","slug":"CVE-2022-2127","body":"## Overview\n\nAn out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.\n\n## Affected\n\n- `samba (all versions)`\n- `samba (all versions)`\n- `samba (all versions)`\n- `samba (all versions)`\n- `samba (all versions)`\n- `samba (all versions)`\n- `samba (all versions)`\n- `samba`\n- `samba4`\n- `samba`\n- `samba`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.3,"exploitation":0,"ransomware":0},"changes":[]}