Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2018:3268-1 Final 1 1 2018-10-22T09:17:53Z current 2018-10-22T09:17:53Z 2018-10-22T09:17:53Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3) This update for the Linux Kernel 4.4.156-94_61 fixes one issue. The following security issue was fixed: - CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bsc#1107832). 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-SP3-2018-2362,SUSE-SLE-Live-Patching-12-SP3-2018-2363 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2018/suse-su-20183268-1/ Link for SUSE-SU-2018:3268-1 https://lists.suse.com/pipermail/sle-security-updates/2018-October/004751.html E-Mail link for SUSE-SU-2018:3268-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1107832 SUSE Bug 1107832 https://www.suse.com/security/cve/CVE-2018-14633/ SUSE CVE CVE-2018-14633 page SUSE Linux Enterprise Live Patching 12 SP3 kgraft-patch-4_4_156-94_57-default-2-2.1 kgraft-patch-4_4_156-94_61-default-2-2.1 kgraft-patch-4_4_156-94_57-default-2-2.1 as a component of SUSE Linux Enterprise Live Patching 12 SP3 kgraft-patch-4_4_156-94_61-default-2-2.1 as a component of SUSE Linux Enterprise Live Patching 12 SP3 A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable. CVE-2018-14633 SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_57-default-2-2.1 SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_61-default-2-2.1 important 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/2018/suse-su-20183268-1/ https://www.suse.com/security/cve/CVE-2018-14633.html CVE-2018-14633 https://bugzilla.suse.com/1107829 SUSE Bug 1107829 https://bugzilla.suse.com/1107832 SUSE Bug 1107832