Improper Data Handling Affecting glibc package, versions <2.28-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.47% (77th percentile)

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  • Snyk IDSNYK-DEBIAN11-GLIBC-528949
  • published26 Feb 2019
  • disclosed26 Feb 2019

Introduced: 26 Feb 2019

CVE-2009-5155  (opens in a new tab)
CWE-19  (opens in a new tab)

How to fix?

Upgrade Debian:11 glibc to version 2.28-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Debian. See How to fix? for Debian:11 relevant fixed versions and status.

In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion failure and application exit) or trigger an incorrect result by attempting a regular-expression match.