{"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":"2026-04-10T05:06:19.782304Z","published":"2023-12-24T07:15:07.410Z","related":["CGA-87mg-824v-5jqp"],"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/23/3"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/29/5"},{"type":"WEB","url":"https://www.openwall.com/lists/oss-security/2025/09/22/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/24/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/25/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/23/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/26/4"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/28/7"},{"type":"WEB","url":"https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/24/7"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/7"},{"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/2025/09/23/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/22/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/23/4"},{"type":"WEB","url":"https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/3"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/5"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/6"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/10/01/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/27/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/10/01/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/22/1"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/25/6"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/26/2"},{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2025/09/29/6"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20240125-0006/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/CVE-2023-51767"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2023-51767"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2255850"},{"type":"ARTICLE","url":"https://arxiv.org/abs/2309.02545"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/openssh/openssh-portable","events":[{"introduced":"0"},{"last_affected":"fd0fa130ecf06d7d092932adcd5d77f1549bfc8d"},{"introduced":"0"},{"last_affected":"94eb6858efecc1b4f02d8a6bd35e149f55c814c8"}],"database_specific":{"versions":[{"introduced":"0"},{"last_affected":"8.0"},{"introduced":"0"},{"last_affected":"9.0"}]}}],"versions":["ABOUT_TO_ADD_INET_ATON","AFTER_FREEBSD_PAM_MERGE","AFTER_KRB5_GSSAPI_MERGE","BEFORE_FREEBSD_PAM_MERGE","BEFORE_KRB5_GSSAPI_MERGE","POST_KRB4_REMOVAL","PRE-REORDER","PRE_CYGWIN_MERGE","PRE_DAN_PATCH_MERGE","PRE_FIXPATHS_INTEGRATION","PRE_HPUX_INTEGRATION","PRE_IPV6","PRE_KRB4_REMOVAL","PRE_NEW_LOGIN_CODE","PRE_SW_KRBV","V_1_2PRE17","V_1_2_1_PRE18","V_1_2_1_PRE19","V_1_2_1_PRE20","V_1_2_1_PRE21","V_1_2_1_PRE22","V_1_2_1_PRE23","V_1_2_1_PRE24","V_1_2_1_PRE25","V_1_2_1_PRE26","V_1_2_1_PRE27","V_1_2_2","V_1_2_2_P1","V_1_2_2_PRE28","V_1_2_2_PRE29","V_1_2_3","V_1_2_3_PRE1","V_1_2_3_PRE2","V_1_2_3_PRE3","V_1_2_3_PRE4","V_1_2_3_PRE5","V_1_2_3_TEST1","V_1_2_3_TEST2","V_1_2_3_TEST3","V_1_2_PRE10","V_1_2_PRE11","V_1_2_PRE12","V_1_2_PRE13","V_1_2_PRE14","V_1_2_PRE15","V_1_2_PRE16","V_1_2_PRE4","V_1_2_PRE5","V_1_2_PRE6","V_1_2_PRE7","V_1_2_PRE8","V_1_2_PRE9","V_2_0_0_BETA1","V_2_0_0_BETA2","V_2_0_0_TEST1","V_2_1_0","V_2_1_0_P1","V_2_1_0_P2","V_2_1_0_P3","V_2_1_1_P1","V_2_1_1_P2","V_2_1_1_P3","V_2_1_1_P4","V_2_2_0_P1","V_2_3_0_P1","V_2_5_0_P1","V_2_5_1_P1","V_2_5_1_P2","V_2_5_2_P1","V_3_0_1_P1","V_3_0_P1","V_3_1_P1","V_3_2_2_P1","V_3_4_P1","V_3_6_1_P1","V_3_8_P1","V_3_9_P1","V_4_2_P1","V_5_0_P1","V_5_1_P1","V_5_2_P1","V_5_5_P1","V_5_7_P1","V_6_0_P1","V_6_1_P1","V_6_2_P1","V_6_5_P1","V_6_6_P1","V_6_8_P1","V_6_9_P1","V_7_0_P1","V_7_1_P1","V_7_2_P1","V_7_3_P1","V_7_4_P1","V_7_5_P1","V_7_6_P1","V_7_7_P1","V_7_8_P1","V_7_9_P1","V_8_0_P1","V_8_1_P1","V_8_2_P1","V_8_4_P1","V_8_5_P1","V_8_6_P1","V_8_7_P1","V_8_8_P1","V_8_9_P1","V_9_0_P1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-51767.json","unresolved_ranges":[{"events":[{"in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