Executable Regular Expression Error Affecting perl-libnetcfg package, versions <0:5.42.2-524.1.hum1


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
5.97% (93rd percentile)

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  • Snyk IDSNYK-RHEL10-PERLLIBNETCFG-20942682
  • published15 Oct 2026
  • disclosed2 Jun 2020

Introduced: 2 Jun 2020

CVE-2020-12723  (opens in a new tab)
CWE-624  (opens in a new tab)

How to fix?

Upgrade RHEL:10 perl-libnetcfg to version 0:5.42.2-524.1.hum1 or higher.
This issue was patched in RHSA-2026:7604.

NVD Description

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

regcomp.c in Perl before 5.30.3 allows a buffer overflow via a crafted regular expression because of recursive S_study_chunk calls.

CVSS Base Scores

version 3.1