CVE-2023-51767

High

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."

SeverityHigh
CVSS7.0
Exploit probability—
ProductOpenbsd Openssh
PublishedDec 24, 2023
First seenDec 24, 2023

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
openbsd opensshNo range specified—
fedoraproject fedora39—
redhat enterprise_linux8.0, 9.0—

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CVE-2023-51767 · Openbsd Openssh · Dark Radar