Security update for kernel live patch 2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2016:0384-1 Final 1 1 2016-02-08T13:46:19Z current 2016-02-08T13:46:19Z 2016-02-08T13:46:19Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for kernel live patch 2 This kernel live patch for Linux Kernel 3.12.36-38.1 fixes security issues and bugs: Security issues fixed: - CVE-2015-8539: A negatively instantiated user key could have been used by a local user to leverage privileges (bnc#958601). - CVE-2015-6937: A NULL pointer dereference flaw was found in the Reliable Datagram Sockets (RDS) implementation allowing a local user to cause system DoS. A verification was missing that the underlying transport exists when a connection was created. (bsc#953052) - CVE-2015-7990: RDS: Verify the underlying transport exists before creating a connection, preventing possible DoS (bsc#953052). - CVE-2015-7872: Possible crash when trying to garbage collect an uninstantiated keyring (bsc#951542). - CVE-2015-2925: The prepend_path function in fs/dcache.c in the Linux kernel did not properly handle rename actions inside a bind mount, which allowed local users to bypass an intended container protection mechanism by renaming a directory, related to a 'double-chroot attack (bnc#951625). Non-security bugfix were also done: - xfs: Fix lost direct IO write in the last block (bsc#954005). - simple fix in kallsyms initialization (bsc#940342 bsc#916225) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Live-Patching-12-2016-224 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2016/suse-su-20160384-1/ Link for SUSE-SU-2016:0384-1 https://lists.opensuse.org/opensuse-security-announce/2016-02/msg00020.html E-Mail link for SUSE-SU-2016:0384-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/916225 SUSE Bug 916225 https://bugzilla.suse.com/940342 SUSE Bug 940342 https://bugzilla.suse.com/951542 SUSE Bug 951542 https://bugzilla.suse.com/951625 SUSE Bug 951625 https://bugzilla.suse.com/953052 SUSE Bug 953052 https://bugzilla.suse.com/954005 SUSE Bug 954005 https://bugzilla.suse.com/958601 SUSE Bug 958601 https://www.suse.com/security/cve/CVE-2015-2925/ SUSE CVE CVE-2015-2925 page https://www.suse.com/security/cve/CVE-2015-6937/ SUSE CVE CVE-2015-6937 page https://www.suse.com/security/cve/CVE-2015-7872/ SUSE CVE CVE-2015-7872 page https://www.suse.com/security/cve/CVE-2015-7990/ SUSE CVE CVE-2015-7990 page https://www.suse.com/security/cve/CVE-2015-8539/ SUSE CVE CVE-2015-8539 page SUSE Linux Enterprise Live Patching 12 kgraft-patch-3_12_36-38-default-5-2.1 kgraft-patch-3_12_36-38-xen-5-2.1 kgraft-patch-3_12_36-38-default-5-2.1 as a component of SUSE Linux Enterprise Live Patching 12 kgraft-patch-3_12_36-38-xen-5-2.1 as a component of SUSE Linux Enterprise Live Patching 12 The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename actions inside a bind mount, which allows local users to bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack." CVE-2015-2925 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1 moderate 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/2016/suse-su-20160384-1/ https://www.suse.com/security/cve/CVE-2015-2925.html CVE-2015-2925 https://bugzilla.suse.com/926238 SUSE Bug 926238 https://bugzilla.suse.com/951625 SUSE Bug 951625 https://bugzilla.suse.com/951638 SUSE Bug 951638 https://bugzilla.suse.com/963994 SUSE Bug 963994 The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound. CVE-2015-6937 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1 moderate 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/2016/suse-su-20160384-1/ https://www.suse.com/security/cve/CVE-2015-6937.html CVE-2015-6937 https://bugzilla.suse.com/1115893 SUSE Bug 1115893 https://bugzilla.suse.com/923755 SUSE Bug 923755 https://bugzilla.suse.com/945825 SUSE Bug 945825 https://bugzilla.suse.com/952384 SUSE Bug 952384 https://bugzilla.suse.com/953052 SUSE Bug 953052 https://bugzilla.suse.com/963994 SUSE Bug 963994 The key_gc_unused_keys function in security/keys/gc.c in the Linux kernel through 4.2.6 allows local users to cause a denial of service (OOPS) via crafted keyctl commands. CVE-2015-7872 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1 moderate 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/2016/suse-su-20160384-1/ https://www.suse.com/security/cve/CVE-2015-7872.html CVE-2015-7872 https://bugzilla.suse.com/951440 SUSE Bug 951440 https://bugzilla.suse.com/951542 SUSE Bug 951542 https://bugzilla.suse.com/951638 SUSE Bug 951638 https://bugzilla.suse.com/958463 SUSE Bug 958463 https://bugzilla.suse.com/958601 SUSE Bug 958601 Race condition in the rds_sendmsg function in net/rds/sendmsg.c in the Linux kernel before 4.3.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by using a socket that was not properly bound. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-6937. CVE-2015-7990 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1 low 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/2016/suse-su-20160384-1/ https://www.suse.com/security/cve/CVE-2015-7990.html CVE-2015-7990 https://bugzilla.suse.com/945825 SUSE Bug 945825 https://bugzilla.suse.com/952384 SUSE Bug 952384 https://bugzilla.suse.com/953052 SUSE Bug 953052 The KEYS subsystem in the Linux kernel before 4.4 allows local users to gain privileges or cause a denial of service (BUG) via crafted keyctl commands that negatively instantiate a key, related to security/keys/encrypted-keys/encrypted.c, security/keys/trusted.c, and security/keys/user_defined.c. CVE-2015-8539 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-default-5-2.1 SUSE Linux Enterprise Live Patching 12:kgraft-patch-3_12_36-38-xen-5-2.1 important 6.9 AV:L/AC:M/Au:N/C:C/I:C/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/2016/suse-su-20160384-1/ https://www.suse.com/security/cve/CVE-2015-8539.html CVE-2015-8539 https://bugzilla.suse.com/1115893 SUSE Bug 1115893 https://bugzilla.suse.com/781018 SUSE Bug 781018 https://bugzilla.suse.com/958463 SUSE Bug 958463 https://bugzilla.suse.com/958601 SUSE Bug 958601