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: buffer over-read in iconv when processing invalid multi-byte input sequences in the EUC-KR encoding (CVE-2019-25013)
glibc: regular-expression match via proceed_next_node in posix/regexec.c leads to heap-based buffer over-read (CVE-2019-9169)
glibc: assertion failure in ISO-2022-JP-3 gconv module related to combining characters (CVE-2021-3326)
glibc: iconv program can hang when invoked with the -c option (CVE-2016-10228)
glibc: iconv when processing invalid multi-byte input sequences fails to advance the input state, which could result in an infinite loop (CVE-2020-27618)
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 8.4 Release Notes linked from the References section.
bugzilla.redhat.com/show_bug.cgi?id=1428290
bugzilla.redhat.com/show_bug.cgi?id=1684057
bugzilla.redhat.com/show_bug.cgi?id=1704868
bugzilla.redhat.com/show_bug.cgi?id=1855790
bugzilla.redhat.com/show_bug.cgi?id=1856398
bugzilla.redhat.com/show_bug.cgi?id=1868106
bugzilla.redhat.com/show_bug.cgi?id=1871385
bugzilla.redhat.com/show_bug.cgi?id=1871387
bugzilla.redhat.com/show_bug.cgi?id=1871394
bugzilla.redhat.com/show_bug.cgi?id=1871395
bugzilla.redhat.com/show_bug.cgi?id=1871396
bugzilla.redhat.com/show_bug.cgi?id=1871397
bugzilla.redhat.com/show_bug.cgi?id=1880670
bugzilla.redhat.com/show_bug.cgi?id=1893662
bugzilla.redhat.com/show_bug.cgi?id=1893708
bugzilla.redhat.com/show_bug.cgi?id=1912960
bugzilla.redhat.com/show_bug.cgi?id=1918115
bugzilla.redhat.com/show_bug.cgi?id=1921916
bugzilla.redhat.com/show_bug.cgi?id=1927040
bugzilla.redhat.com/show_bug.cgi?id=1931305
errata.rockylinux.org/RLSA-2021:1585