-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2021-7ddb8b0537 2021-06-14 01:05:42.031176 --------------------------------------------------------------------------------
Name : glibc Product : Fedora 34 Version : 2.33 Release : 16.fc34 URL : http://www.gnu.org/software/glibc/ Summary : The GNU libc libraries Description : The glibc package contains standard libraries which are used by multiple programs on the system. In order to save disk space and memory, as well as to make upgrading easier, common system code is kept in one place and shared between programs. This particular package contains the most important sets of shared libraries: the standard C library and the standard math library. Without these two libraries, a Linux system will not function.
-------------------------------------------------------------------------------- Update Information:
This glibc update fixes a use-after-free in the `mq_notify` function (CVE-2021-33574). -------------------------------------------------------------------------------- ChangeLog:
* Fri Jun 11 2021 Arjun Shankar arjun@redhat.com - 2.33-16 - CVE-2021-33574: Use __pthread_attr_copy in mq_notify (#1965410) -------------------------------------------------------------------------------- References:
[ 1 ] Bug #1965410 - CVE-2021-33574 glibc: mq_notify does not handle separately allocated thread attributes [fedora-all] https://bugzilla.redhat.com/show_bug.cgi?id=1965410 --------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2021-7ddb8b0537' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label
All packages are signed with the Fedora Project GPG key. More details on the GPG keys used by the Fedora Project can be found at https://fedoraproject.org/keys --------------------------------------------------------------------------------