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Improper Input Validation Affecting patch package, versions <2.7.6-2

0.0
high

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 1.62% (88th percentile)
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NVD
7.8 high
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Red Hat
7.8 high

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  • Snyk ID SNYK-DEBIAN11-PATCH-516357
  • published 6 Apr 2018
  • disclosed 6 Apr 2018
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Introduced: 6 Apr 2018

CVE-2018-1000156 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade Debian:11 patch to version 2.7.6-2 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 Debian. See How to fix? for Debian:11 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