Security update for gnome-session SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2017:2173-1 Final 1 1 2017-08-16T09:28:45Z current 2017-08-16T09:28:45Z 2017-08-16T09:28:45Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for gnome-session This update for gnome-session fixes the following issues: - CVE-2017-11171: Fix a denial of service condition. an unauthenticated local user can create ICE connections, causing a file descriptor leak in gnome-session (bsc#1048274). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). slessp4-gnome-session-13231 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2017/suse-su-20172173-1/ Link for SUSE-SU-2017:2173-1 https://lists.suse.com/pipermail/sle-security-updates/2017-August/003137.html E-Mail link for SUSE-SU-2017:2173-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1048274 SUSE Bug 1048274 https://www.suse.com/security/cve/CVE-2017-11171/ SUSE CVE CVE-2017-11171 page SUSE Linux Enterprise Server 11 SP4 SUSE Linux Enterprise Server for SAP Applications 11 SP4 gnome-session-2.28.0-3.11.12.2 gnome-session-lang-2.28.0-3.11.12.2 gnome-session-2.28.0-3.11.12.2 as a component of SUSE Linux Enterprise Server 11 SP4 gnome-session-lang-2.28.0-3.11.12.2 as a component of SUSE Linux Enterprise Server 11 SP4 gnome-session-2.28.0-3.11.12.2 as a component of SUSE Linux Enterprise Server for SAP Applications 11 SP4 gnome-session-lang-2.28.0-3.11.12.2 as a component of SUSE Linux Enterprise Server for SAP Applications 11 SP4 Bad reference counting in the context of accept_ice_connection() in gsm-xsmp-server.c in old versions of gnome-session up until version 2.29.92 allows a local attacker to establish ICE connections to gnome-session with invalid authentication data (an invalid magic cookie). Each failed authentication attempt will leak a file descriptor in gnome-session. When the maximum number of file descriptors is exhausted in the gnome-session process, it will enter an infinite loop trying to communicate without success, consuming 100% of the CPU. The graphical session associated with the gnome-session process will stop working correctly, because communication with gnome-session is no longer possible. CVE-2017-11171 SUSE Linux Enterprise Server 11 SP4:gnome-session-2.28.0-3.11.12.2 SUSE Linux Enterprise Server 11 SP4:gnome-session-lang-2.28.0-3.11.12.2 SUSE Linux Enterprise Server for SAP Applications 11 SP4:gnome-session-2.28.0-3.11.12.2 SUSE Linux Enterprise Server for SAP Applications 11 SP4:gnome-session-lang-2.28.0-3.11.12.2 moderate 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2017/suse-su-20172173-1/ https://www.suse.com/security/cve/CVE-2017-11171.html CVE-2017-11171 https://bugzilla.suse.com/1025068 SUSE Bug 1025068 https://bugzilla.suse.com/1048274 SUSE Bug 1048274