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


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-RHEL8-GLIBCLANGPACKYUE-4159909
  • 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 RHEL:8 glibc-langpack-yue to version 0:2.28-164.el8 or higher.
This issue was patched in RHSA-2021:4358.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc-langpack-yue package and not the glibc-langpack-yue package as distributed by RHEL. See How to fix? for RHEL: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