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CVE-2023-51767 Affecting openssh package, versions *

low

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.05% (19th percentile)
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NVD
7 high
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Red Hat
7 high

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  • Snyk ID SNYK-DEBIAN12-OPENSSH-6139205
  • published 24 Dec 2023
  • disclosed 24 Dec 2023
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Introduced: 24 Dec 2023

CVE-2023-51767 Open this link in a new tab

How to fix?

There is no fixed version for Debian:12 openssh.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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.