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osvGoogleOSV:RLSA-2021:4358
HistoryNov 09, 2021 - 9:08 a.m.

Moderate: glibc security, bug fix, and enhancement update

2021-11-0909:08:59
Google
osv.dev
8

9.5 High

AI Score

Confidence

High

0.014 Low

EPSS

Percentile

86.4%

The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math libraries (libm), and the name service cache daemon (nscd) used by multiple programs on the system. Without these libraries, the Linux system cannot function correctly.

Security Fix(es):

  • glibc: Arbitrary read in wordexp() (CVE-2021-35942)

  • glibc: Use-after-free in addgetnetgrentX function in netgroupcache.c (CVE-2021-27645)

  • glibc: mq_notify does not handle separately allocated thread attributes (CVE-2021-33574)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux 8.5 Release Notes linked from the References section.