{"id":"CVE-2023-25567","summary":"GSS-NTLMSSP vulnerable to out-of-bounds read when decoding target information","details":"GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0.","aliases":["GHSA-24pf-6prf-24ch"],"modified":"2026-08-12T13:32:28.625113Z","published":"2023-02-14T17:35:59.571Z","related":["ALSA-2023:3097","openSUSE-SU-2023:0048-1","openSUSE-SU-2024:12701-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25567.json"},"references":[{"type":"WEB","url":"https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25567.json"},{"type":"ADVISORY","url":"https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-24pf-6prf-24ch"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-25567"},{"type":"FIX","url":"https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/gssapi/gss-ntlmssp","events":[{"introduced":"0"},{"fixed":"3c3077e2a24b47db1b4c459fb3173ba7f75b9b44"},{"fixed":"025fbb756d44ffee8f847db4222ed6aa4bd1fbe4"}],"database_specific":{"cpe":"cpe:2.3:a:gss-ntlmssp_project:gss-ntlmssp:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.2.0"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["v1.1.0","v1.0.0","v0.9.0","0.8.0","v0.8.0","v0.7.0","v0.6.0","v0.5.0","v0.4.0","v0.3.1","v0.3.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-25567.json","vanir_signatures_modified":"2026-08-12T13:32:28Z","vanir_signatures":[{"deprecated":false,"digest":{"function_hash":"295931300105472389840611522012945909811","length":2614},"id":"CVE-2023-25567-20ca4e83","signature_type":"Function","signature_version":"v1","source":"https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4","target":{"file":"src/ntlm.c","function":"ntlm_decode_target_info"}},{"digest":{"line_hashes":["329743560795464476895232845368295987571","48100070528925819657576299319623394864","303437604845121147420625571195586538457","46502789084243232481075414645123473400","70834396620221594922657795775309503399","265237019340786180551472604632610818336","81799710271861100236197808039689992782","31764002907565967064075017503913859348","104704938735519366560627176038904399139"],"threshold":0.9},"id":"CVE-2023-25567-9b1bb4a1","signature_type":"Line","signature_version":"v1","source":"https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4","target":{"file":"src/ntlm.c"},"deprecated":false}]}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}