Out-of-bounds Read Affecting pcre3 package, versions <2:8.35-7.2


low

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High
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NVD
7.8 high
Red Hat  medium

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  • Snyk ID SNYK-DEBIAN10-PCRE3-345389
  • published 27 Jun 2018
  • disclosed 14 Jan 2020

How to fix?

Upgrade Debian:10 pcre3 to version 2:8.35-7.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pcre3 package and not the pcre3 package as distributed by Debian:10. See How to fix? for Debian:10 relevant fixed versions and status.

The compile_branch function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code, cause a denial of service (out-of-bounds heap read and crash), or possibly have other unspecified impact via a regular expression with a group containing a forward reference repeated a large number of times within a repeated outer group that has a zero minimum quantifier.