Out-of-bounds Write Affecting cpio package, versions <0:2.12-11.el8


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
4.17% (91st percentile)

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  • Snyk IDSNYK-CENTOS8-CPIO-1970858
  • published17 Aug 2021
  • disclosed6 Aug 2021

Introduced: 6 Aug 2021

CVE-2021-38185  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Centos:8 cpio to version 0:2.12-11.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cpio package and not the cpio package as distributed by Centos. See How to fix? for Centos:8 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.

CVSS Base Scores

version 3.1