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CVE-2023-28531 Affecting openssh package, versions <1:8.9p1-3ubuntu0.5

low

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.11% (43rd percentile)
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NVD
9.8 critical
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Red Hat
9.1 critical

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  • Snyk ID SNYK-UBUNTU2204-OPENSSH-3367022
  • published 21 Mar 2023
  • disclosed 17 Mar 2023
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Introduced: 17 Mar 2023

CVE-2023-28531 Open this link in a new tab

How to fix?

Upgrade Ubuntu:22.04 openssh to version 1:8.9p1-3ubuntu0.5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openssh package and not the openssh package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

ssh-add in OpenSSH before 9.3 adds smartcard keys to ssh-agent without the intended per-hop destination constraints. The earliest affected version is 8.9.