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Integer Overflow or Wraparound Affecting pcre package, versions <0:8.21-7.9.amzn1

medium

Snyk CVSS

    Attack Complexity Low
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 3.85% (92nd percentile)
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NVD
9.8 critical

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  • Snyk ID SNYK-AMZN201803-PCRE-5673314
  • published 9 Jun 2023
  • disclosed 2 Dec 2015
Report a new vulnerability Found a mistake?

Introduced: 2 Dec 2015

CVE-2015-8394 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 pcre to version 0:8.21-7.9.amzn1 or higher.
This issue was patched in ALAS-2023-1767.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcre package and not the pcre package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

PCRE before 8.38 mishandles the (?(<digits>) and (?(R<digits>) conditions, which allows remote attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.