SUSE-SU-2017:3286-1

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SUSE-SU-2017:3286-1

Summary: Security update for the Linux Kernel (Live Patch 8 for SLE 12 SP2)

Details: This update for the Linux Kernel 4.4.59-92_20 fixes several issues. The following security issues were fixed: - CVE-2017-1000405: Problematic use of pmd_mkdirty() in the touch_pmd() function allowed users to overwrite read-only huge pages (e.g. the zero huge page and sealed shmem files) (bsc#1070307). - CVE-2017-16939: The XFRM dump policy implementation in net/xfrm/xfrm_user.c kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages (bsc#1069708). - CVE-2017-10661: Race condition in fs/timerfd.c allowed local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing (bsc#1053153). This non-security issue was fixed: - bsc#1062847: Enable proper shut down if NIC teaming is enabled

References: https://www.suse.com/support/update/announcement/2017/suse-su-20173286-1/, https://bugzilla.suse.com/1053153, https://bugzilla.suse.com/1055567, https://bugzilla.suse.com/1062847, https://bugzilla.suse.com/1069708, https://bugzilla.suse.com/1070307, https://www.suse.com/security/cve/CVE-2017-1000405, https://www.suse.com/security/cve/CVE-2017-10661, https://www.suse.com/security/cve/CVE-2017-16939