Fedora 27 glibc Update Security Advisory - Moderate Severity

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.

This update fixes minor security bugs (CVE-2017-17426, CVE-2017-15804), contains

single-threaded optimizations for `malloc`, and increases compatibility with IBM

POWER 9 hardware.

[ 1 ] Bug #1505298 - CVE-2017-15804 glibc: Buffer overflow during unescaping of user names with the ~ operator

https://bugzilla.redhat.com/show_bug.cgi?id=1505298

[ 2 ] Bug #1524530 - CVE-2017-17426 glibc: Integer overflow with enabled tcache

https://bugzilla.redhat.com/show_bug.cgi?id=1524530

su -c 'dnf upgrade glibc' at the command line.

For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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/security/

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