Double Free Affecting glibc package, versions <2.31-10
Threat Intelligence
EPSS
0.05% (19th
percentile)
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Test your applications- Snyk ID SNYK-DEBIAN11-GLIBC-1078996
- published 25 Feb 2021
- disclosed 24 Feb 2021
Introduced: 24 Feb 2021
CVE-2021-27645 Open this link in a new tabHow to fix?
Upgrade Debian:11
glibc
to version 2.31-10 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:11
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.
References
- https://security-tracker.debian.org/tracker/CVE-2021-27645
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7LZNT6KTMCCWPWXEOGSHD3YLYZKUGMH5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7TS26LIZSOBLGJEZMJX4PXT5BQDE2WS/
- https://sourceware.org/bugzilla/show_bug.cgi?id=27462
- https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html
- https://security.gentoo.org/glsa/202107-07
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7LZNT6KTMCCWPWXEOGSHD3YLYZKUGMH5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/I7TS26LIZSOBLGJEZMJX4PXT5BQDE2WS/
CVSS Scores
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