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Heap-based Buffer Overflow Affecting perl-libnetcfg package, versions <0:5.42.2-524.hum1

Severity

 Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
6.21% (94th percentile)

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  • Snyk IDSNYK-RHEL10-PERLLIBNETCFG-20991318
  • published16 Oct 2026
  • disclosed12 Sept 2017
Report a new vulnerability Found a mistake?

Introduced: 12 Sep 2017

CVE-2017-12837  (opens in a new tab)
CWE-122  (opens in a new tab)

How to fix?

Upgrade RHEL:10 perl-libnetcfg to version 0:5.42.2-524.hum1 or higher.
This issue was patched in RHSA-2026:6206.

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.

Heap-based buffer overflow in the S_regatom function in regcomp.c in Perl 5 before 5.24.3-RC1 and 5.26.x before 5.26.1-RC1 allows remote attackers to cause a denial of service (out-of-bounds write) via a regular expression with a '\N{}' escape and the case-insensitive modifier.