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CVE-2023-51767

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.

Published

2023-12-24T07:15:07.410

Last Modified

2024-11-21T08:38:45.390

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

Weaknesses

Type: Primary
NVD-CWE-Other

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	openbsd	openssh	*	Yes
Operating System	fedoraproject	fedora	39	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Operating System	redhat	enterprise_linux	9.0	Yes

References

https://access.redhat.com/security/cve/CVE-2023-51767 Third Party Advisory ([email protected])
https://arxiv.org/abs/2309.02545 Technical Description ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=2255850 Issue Tracking, Third Party Advisory ([email protected])
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77 Product ([email protected])
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878 Product ([email protected])
https://security.netapp.com/advisory/ntap-20240125-0006/ Third Party Advisory ([email protected])
https://ubuntu.com/security/CVE-2023-51767 Third Party Advisory ([email protected])
https://access.redhat.com/security/cve/CVE-2023-51767 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://arxiv.org/abs/2309.02545 Technical Description (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=2255850 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77 Product (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878 Product (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20240125-0006/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://ubuntu.com/security/CVE-2023-51767 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)