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Improper Input Validation Affecting patch package, versions <2.7.5-1+deb8u1

Severity

0.0
high
0
10

    Threat Intelligence

    EPSS
    1.62% (88th percentile)

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  • Snyk ID SNYK-DEBIAN8-PATCH-303844
  • 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:8 patch to version 2.7.5-1+deb8u1 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:8 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

CVSS Scores

version 3.1
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Snyk

7.8 high
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    High
Expand this section
NVD
7.8 high
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Red Hat
7.8 high