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Integer Overflow or Wraparound Affecting cpio package, versions <0:2.12-11.amzn2

medium

Snyk CVSS

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

    Threat Intelligence

    EPSS 0.25% (65th percentile)
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NVD
7.8 high
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SUSE
8.8 high
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Red Hat
7 high

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  • Snyk ID SNYK-AMZN2-CPIO-3343019
  • published 7 Mar 2023
  • disclosed 8 Aug 2021
Report a new vulnerability Found a mistake?

Introduced: 8 Aug 2021

CVE-2021-38185 Open this link in a new tab
CWE-190 Open this link in a new tab
CWE-787 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 cpio to version 0:2.12-11.amzn2 or higher.
This issue was patched in ALAS2-2023-1972.

NVD Description

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

GNU cpio through 2.13 allows attackers to execute arbitrary code via a crafted pattern file, because of a dstring.c ds_fgetstr integer overflow that triggers an out-of-bounds heap write. NOTE: it is unclear whether there are common cases where the pattern file, associated with the -E option, is untrusted data.