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Link Following Affecting libarchive package, versions <0:3.3.3-3.el8_5

medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High

    Threat Intelligence

    EPSS 0.06% (25th percentile)
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NVD
7.8 high
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Red Hat
7.3 high
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SUSE
6.6 medium

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  • Snyk ID SNYK-CENTOS8-LIBARCHIVE-2320820
  • published 16 Dec 2021
  • disclosed 21 Aug 2021
Report a new vulnerability Found a mistake?

Introduced: 21 Aug 2021

CVE-2021-23177 Open this link in a new tab
CWE-59 Open this link in a new tab

How to fix?

Upgrade Centos:8 libarchive to version 0:3.3.3-3.el8_5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

An improper link resolution flaw while extracting an archive can lead to changing the access control list (ACL) of the target of the link. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to change the ACL of a file on the system and gain more privileges.