{"id":"CVE-2023-51767","details":"OpenSSH through 10.0, when common types of DRAM are used, might allow row hammer attacks (for authentication bypass) because the integer value of authenticated in mm_answer_authpassword does not resist flips of a single bit. NOTE: this is applicable to a certain threat model of attacker-victim co-location in which the attacker has user privileges. NOTE: this is disputed by the Supplier, who states \"we do not consider it to be the application's responsibility to defend against platform architectural weaknesses.\"","modified":"2026-08-12T03:51:20.253180835Z","published":"2023-12-24T00:00:00Z","related":["CGA-87mg-824v-5jqp"],"database_specific":{"isDisputed":true,"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/51xxx/CVE-2023-51767.json","unresolved_ranges":[{"extracted_events":[{"fixed":"10.0"}],"source":"DESCRIPTION"}],"cna_assigner":"mitre"},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/22/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/22/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/23/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/23/3"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/23/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/23/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/24/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/24/7"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/25/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/25/6"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/26/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/26/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/3"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/6"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/7"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/28/7"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/29/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/29/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/29/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/29/6"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/10/01/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/10/01/2"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2023-51767"},{"type":"WEB","url":"https://arxiv.org/abs/2309.02545"},{"type":"WEB","url":"https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77"},{"type":"WEB","url":"https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878"},{"type":"WEB","url":"https://ubuntu.com/security/CVE-2023-51767"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2025/09/22/1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/51xxx/CVE-2023-51767.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-51767"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240125-0006/"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2255850"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openssh/openssh-portable","events":[{"introduced":"fd0fa130ecf06d7d092932adcd5d77f1549bfc8d"},{"last_affected":"94eb6858efecc1b4f02d8a6bd35e149f55c814c8"}],"database_specific":{"source":"CPE_STRING","cpe":["cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*","cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"8.0"},{"last_affected":"8.0"},{"introduced":"9.0"},{"last_affected":"9.0"}]}}],"versions":["8.0","9.0","V_9_0_P1","V_8_9_P1","V_8_8_P1","V_8_7_P1","V_8_6_P1","V_8_5_P1","V_8_4_P1","V_8_2_P1","V_8_1_P1","V_8_0_P1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-51767.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}