CVE-2023-51767
First published: Sun Dec 24 2023(Updated: )
OpenSSH through 9.6, 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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Openbsd Openssh | ||
| Fedoraproject Fedora | =39 | |
| Redhat Enterprise Linux | =8.0 | |
| Redhat Enterprise Linux | =9.0 | |
| debian/openssh | <=1:7.9p1-10+deb10u2<=1:7.9p1-10+deb10u4<=1:8.4p1-5+deb11u3<=1:9.2p1-2+deb12u2<=1:9.6p1-4<=1:9.7p1-4 |
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Reference Links
- https://arxiv.org/abs/2309.02545
- https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878
- https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77
- https://bugzilla.redhat.com/show_bug.cgi?id=2255850
- https://access.redhat.com/security/cve/CVE-2023-51767
- https://ubuntu.com/security/CVE-2023-51767
- https://security.netapp.com/advisory/ntap-20240125-0006/
- https://launchpad.net/bugs/cve/CVE-2023-51767
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2255851
- https://bugzilla.mindrot.org/show_bug.cgi?id=3656
- https://security-tracker.debian.org/tracker/CVE-2023-51767
- https://www.cve.org/CVERecord?id=CVE-2023-51767
- https://nvd.nist.gov/vuln/detail/CVE-2023-51767
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