Use After Free Affecting glibc-minimal-langpack package, versions <0:2.28-164.el8


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-CENTOS8-GLIBCMINIMALLANGPACK-2140921
  • published26 Jul 2021
  • disclosed24 Feb 2021

Introduced: 24 Feb 2021

CVE-2021-27645  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Centos:8 glibc-minimal-langpack to version 0:2.28-164.el8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-minimal-langpack package and not the glibc-minimal-langpack package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

The nameserver caching daemon (nscd) in the GNU C Library (aka glibc or libc6) 2.29 through 2.33, when processing a request for netgroup lookup, may crash due to a double-free, potentially resulting in degraded service or Denial of Service on the local system. This is related to netgroupcache.c.

CVSS Scores

version 3.1