SUSE: 2019:1588-1 important: the Linux Kernel (Live Patch 10 for SLE 15)
Summary
This update for the Linux Kernel 4.12.14-150_17 fixes several issues. The following security issues were fixed: - CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network (bsc#1136446). - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. (bsc#1137586). - CVE-2019-11478: It was possible to send a crafted sequence of SACKs which would fragment the TCP retransmission queue. A remote attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. (bsc#1137586) - CVE-2019-11487: The Linux kernel allowed page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests (bsc#1133191). Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Module for Live Patching 15-SP1: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP1-2019-1588=1 - SUSE Linux Enterprise Module for Live Patching 15: zypper in -t patch SUSE-SLE-Module-Live-Patching-15-2019-1578=1 SUSE-SLE-Module-Live-Patching-15-2019-1580=1 Package List: - SUSE Linux Enterprise Module for Live Patching 15-SP1 (ppc64le x86_64): kernel-livepatch-4_12_14-195-default-2-4.1 - SUSE Linux Enterprise Module for Live Patching 15 (ppc64le x86_64): kernel-livepatch-4_12_14-150_14-default-2-2.1 kernel-livepatch-4_12_14-150_14-default-debuginfo-2-2.1 kernel-livepatch-4_12_14-150_17-default-2-2.1 kernel-livepatch-4_12_14-150_17-default-debuginfo-2-2.1
References
#1133191 #1136446 #1136935 #1137597
Cross- CVE-2019-11477 CVE-2019-11478 CVE-2019-11487
CVE-2019-3846
Affected Products:
SUSE Linux Enterprise Module for Live Patching 15-SP1
SUSE Linux Enterprise Module for Live Patching 15
https://www.suse.com/security/cve/CVE-2019-11477.html
https://www.suse.com/security/cve/CVE-2019-11478.html
https://www.suse.com/security/cve/CVE-2019-11487.html
https://www.suse.com/security/cve/CVE-2019-3846.html
https://bugzilla.suse.com/1133191
https://bugzilla.suse.com/1136446
https://bugzilla.suse.com/1136935
https://bugzilla.suse.com/1137597