Link Following Affecting bsdtar package, versions *


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.06% (27th percentile)

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  • Snyk IDSNYK-CENTOS7-BSDTAR-2321483
  • published16 Dec 2021
  • disclosed22 Aug 2021

Introduced: 22 Aug 2021

CVE-2021-31566  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

There is no fixed version for Centos:7 bsdtar.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bsdtar package and not the bsdtar package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. 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 gain more privileges in a system.

CVSS Scores

version 3.1