Double Free Affecting glibc package, versions [2.29,2.34)


Severity

Recommended
0.0
low
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-UNMANAGED-GLIBC-2319050
  • published14 Dec 2021
  • disclosed24 Feb 2021
  • creditUnknown

Introduced: 24 Feb 2021

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

How to fix?

Upgrade glibc to version 2.34 or higher.

Overview

Affected versions of this package are vulnerable to Double Free. 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