Double Free Affecting glibc-benchtests package, versions <0:2.28-164.el8


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

Exploit Maturity
Not Defined
EPSS
0.05% (20th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Double Free vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALMALINUX8-GLIBCBENCHTESTS-5651891
  • published28 May 2023
  • disclosed9 Nov 2021

Introduced: 9 Nov 2021

CVE-2021-27645  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 glibc-benchtests to version 0:2.28-164.el8 or higher.
This issue was patched in ALSA-2021:4358.

NVD Description

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