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Improper Input Validation Affecting patch package, versions <0:2.7.1-10.amzn2

Severity

 Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.37% (87th percentile)

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  • Snyk IDSNYK-AMZN2-PATCH-1662503
  • published27 Sept 2021
  • disclosed6 Apr 2018
Report a new vulnerability Found a mistake?

Introduced: 6 Apr 2018

CVE-2018-1000156  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 patch to version 0:2.7.1-10.amzn2 or higher.
This issue was patched in ALAS2-2018-1008.

NVD Description

Note: Versions mentioned in the description apply only to the upstream patch package and not the patch package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

GNU Patch version 2.7.6 contains an input validation vulnerability when processing patch files, specifically the EDITOR_PROGRAM invocation (using ed) can result in code execution. This attack appear to be exploitable via a patch file processed via the patch utility. This is similar to FreeBSD's CVE-2015-1418 however although they share a common ancestry the code bases have diverged over time.

References