Double Free Affecting glibc package, versions <2.28-10+deb10u2


Severity

Recommended
0.0
low
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

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-DEBIAN10-GLIBC-1078993
  • published25 Feb 2021
  • disclosed24 Feb 2021

Introduced: 24 Feb 2021

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

How to fix?

Upgrade Debian:10 glibc to version 2.28-10+deb10u2 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:10 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