CVE-2023-51767

Affected products

Description

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."

Source: NVD

References

• [NVD]https://nvd.nist.gov/vuln/detail/CVE-2023-51767
• [Other]https://access.redhat.com/security/cve/CVE-2023-51767
• [Other]https://arxiv.org/abs/2309.02545
• [Other]https://bugzilla.redhat.com/show_bug.cgi?id=2255850
• [Other]https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77
• [Other]https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878
• [Other]https://security.netapp.com/advisory/ntap-20240125-0006/
• [Other]https://ubuntu.com/security/CVE-2023-51767
• [Other]https://www.openwall.com/lists/oss-security/2025/09/22/1
• [Other]http://www.openwall.com/lists/oss-security/2025/09/22/1
• [Other]http://www.openwall.com/lists/oss-security/2025/09/22/2
• [Other]http://www.openwall.com/lists/oss-security/2025/09/23/1
• [Other]http://www.openwall.com/lists/oss-security/2025/09/23/3
• [Other]http://www.openwall.com/lists/oss-security/2025/09/23/4
• [Other]http://www.openwall.com/lists/oss-security/2025/09/23/5
• [Other]http://www.openwall.com/lists/oss-security/2025/09/24/4
• [Other]http://www.openwall.com/lists/oss-security/2025/09/24/7
• [Other]http://www.openwall.com/lists/oss-security/2025/09/25/2
• [Other]http://www.openwall.com/lists/oss-security/2025/09/25/6
• [Other]http://www.openwall.com/lists/oss-security/2025/09/26/2
• [Other]http://www.openwall.com/lists/oss-security/2025/09/26/4
• [Other]http://www.openwall.com/lists/oss-security/2025/09/27/1
• [Other]http://www.openwall.com/lists/oss-security/2025/09/27/2
• [Other]http://www.openwall.com/lists/oss-security/2025/09/27/3
• [Other]http://www.openwall.com/lists/oss-security/2025/09/27/4
• [Other]http://www.openwall.com/lists/oss-security/2025/09/27/5
• [Other]http://www.openwall.com/lists/oss-security/2025/09/27/6
• [Other]http://www.openwall.com/lists/oss-security/2025/09/27/7
• [Other]http://www.openwall.com/lists/oss-security/2025/09/28/7
• [Other]http://www.openwall.com/lists/oss-security/2025/09/29/1
• [Other]http://www.openwall.com/lists/oss-security/2025/09/29/4
• [Other]http://www.openwall.com/lists/oss-security/2025/09/29/5
• [Other]http://www.openwall.com/lists/oss-security/2025/09/29/6
• [Other]http://www.openwall.com/lists/oss-security/2025/10/01/1
• [Other]http://www.openwall.com/lists/oss-security/2025/10/01/2
• [Other]https://access.redhat.com/security/cve/CVE-2023-51767
• [Other]https://arxiv.org/abs/2309.02545
• [Other]https://bugzilla.redhat.com/show_bug.cgi?id=2255850
• [Other]https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77
• [Other]https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878
• [Other]https://security.netapp.com/advisory/ntap-20240125-0006/
• [Other]https://ubuntu.com/security/CVE-2023-51767

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