Use After Free Affecting glibc package, versions <0:2.28-164.el8
Threat Intelligence
EPSS
0.05% (18th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-GLIBC-2139494
- published 26 Jul 2021
- disclosed 24 Feb 2021
Introduced: 24 Feb 2021
CVE-2021-27645 Open this link in a new tabHow to fix?
Upgrade Centos:8 glibc to version 0:2.28-164.el8 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 Centos.
See How to fix? for Centos: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.
References
- https://access.redhat.com/security/cve/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://access.redhat.com/errata/RHSA-2021:4358
- 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/
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