-------------------------------------------------------------------------------- Fedora Update Notification FEDORA-2021-5af4452ffd 2021-08-19 01:10:36.707704 --------------------------------------------------------------------------------
Name : xscreensaver Product : Fedora 33 Version : 5.45 Release : 2.fc33 URL : http://www.jwz.org/xscreensaver/ Summary : X screen saver and locker Description : A modular screen saver and locker for the X Window System. More than 200 display modes are included in this package.
This is a metapackage for installing all default packages related to XScreenSaver.
-------------------------------------------------------------------------------- Update Information:
A potential security flaw was found on xscreensaver 5.45 which may cause buffer overflow or crash xscreensaver daemon. This vulnerability was assigned as CVE-2021-34557. This new rpm should fix this issue. Note that this issue does not affect xscreensaver 6.00 and above, so Fedora 34 xscreensaver is not affected. -------------------------------------------------------------------------------- ChangeLog:
* Tue Aug 10 2021 Mamoru TASAKA mtasaka@fedoraproject.org - 1:5.45-2 - update_screen_layout: fix CVE-2021-34557 (bug 1974194) -------------------------------------------------------------------------------- References:
[ 1 ] Bug #1974194 - CVE-2021-34557 XScreenSaver: buffer overflow in update_screen_layout() allows an attacker to bypass the standard screen lock authentication https://bugzilla.redhat.com/show_bug.cgi?id=1974194 --------------------------------------------------------------------------------
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2021-5af4452ffd' 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 --------------------------------------------------------------------------------