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.

CVSS v3.0 7.0 HIGH

7.0^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 1.0 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://arxiv.org/abs/2309.02545	Technical Description
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/monitor.c#L878	Patch
https://github.com/openssh/openssh-portable/blob/8241b9c0529228b4b86d88b1a6076fb9f97e4a99/auth-passwd.c#L77	Patch
https://bugzilla.redhat.com/show_bug.cgi?id=2255850	Issue Tracking Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-51767	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:openssh:openssh:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*

Information

Published : 2023-12-24 07:15

Updated : 2024-01-04 19:18

NVD link : CVE-2023-51767

Mitre link : CVE-2023-51767

JSON object : View

Products Affected

fedoraproject

fedora

redhat

enterprise_linux

openssh

openssh

CWE

NVD-CWE-Other

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