Double Free Affecting patch package, versions <2.7.6-r3


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.02% (64th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-PATCH-5846857
  • published21 Aug 2023
  • disclosed25 Mar 2020

Introduced: 25 Mar 2020

CVE-2019-20633  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Chainguard patch to version 2.7.6-r3 or higher.

NVD Description

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

GNU patch through 2.7.6 contains a free(p_line[p_end]) Double Free vulnerability in the function another_hunk in pch.c that can cause a denial of service via a crafted patch file. NOTE: this issue exists because of an incomplete fix for CVE-2018-6952.

CVSS Base Scores

version 3.1