Security update for the Linux Kernel (Live Patch 30 for SLE 12 SP1) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2018:3171-1 Final 1 1 2018-10-16T16:31:33Z current 2018-10-16T16:31:33Z 2018-10-16T16:31:33Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 30 for SLE 12 SP1) This update for the Linux Kernel 3.12.74-60_64_99 fixes several issues. The following security issues were fixed: - CVE-2018-17182: The vmacache_flush_all function in mm/vmacache.c mishandled sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations (bsc#1110233). - CVE-2018-14634: An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable (bsc#1108963). - 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-SERVER-12-SP1-2018-2266,SUSE-SLE-SERVER-12-SP1-2018-2267,SUSE-SLE-SERVER-12-SP1-2018-2268,SUSE-SLE-SERVER-12-SP1-2018-2269,SUSE-SLE-SERVER-12-SP1-2018-2270,SUSE-SLE-SERVER-12-SP1-2018-2271,SUSE-SLE-SERVER-12-SP1-2018-2272,SUSE-SLE-SERVER-12-SP1-2018-2273,SUSE-SLE-SERVER-12-SP1-2018-2275 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-20183171-1/ Link for SUSE-SU-2018:3171-1 https://lists.suse.com/pipermail/sle-security-updates/2018-October/004679.html E-Mail link for SUSE-SU-2018:3171-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1107832 SUSE Bug 1107832 https://bugzilla.suse.com/1108963 SUSE Bug 1108963 https://bugzilla.suse.com/1110233 SUSE Bug 1110233 https://www.suse.com/security/cve/CVE-2018-14633/ SUSE CVE CVE-2018-14633 page https://www.suse.com/security/cve/CVE-2018-14634/ SUSE CVE CVE-2018-14634 page https://www.suse.com/security/cve/CVE-2018-17182/ SUSE CVE CVE-2018-17182 page SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_96-default-5-2.1 kgraft-patch-3_12_74-60_64_96-xen-5-2.1 kgraft-patch-3_12_74-60_64_93-default-5-2.1 kgraft-patch-3_12_74-60_64_93-xen-5-2.1 kgraft-patch-3_12_74-60_64_88-default-6-2.1 kgraft-patch-3_12_74-60_64_88-xen-6-2.1 kgraft-patch-3_12_74-60_64_85-default-8-2.1 kgraft-patch-3_12_74-60_64_85-xen-8-2.1 kgraft-patch-3_12_74-60_64_82-default-8-2.1 kgraft-patch-3_12_74-60_64_82-xen-8-2.1 kgraft-patch-3_12_74-60_64_69-default-8-2.1 kgraft-patch-3_12_74-60_64_69-xen-8-2.1 kgraft-patch-3_12_74-60_64_66-default-9-2.1 kgraft-patch-3_12_74-60_64_66-xen-9-2.1 kgraft-patch-3_12_74-60_64_63-default-10-2.1 kgraft-patch-3_12_74-60_64_63-xen-10-2.1 kgraft-patch-3_12_74-60_64_99-default-4-2.1 kgraft-patch-3_12_74-60_64_99-xen-4-2.1 kgraft-patch-3_12_74-60_64_96-default-5-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_96-xen-5-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_93-default-5-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_93-xen-5-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_88-default-6-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_88-xen-6-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_85-default-8-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_85-xen-8-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_82-default-8-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_82-xen-8-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_69-default-8-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_69-xen-8-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_66-default-9-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_66-xen-9-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_63-default-10-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_63-xen-10-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_99-default-4-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS kgraft-patch-3_12_74-60_64_99-xen-4-2.1 as a component of SUSE Linux Enterprise Server 12 SP1-LTSS 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 Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_63-default-10-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_63-xen-10-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_66-default-9-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_66-xen-9-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_69-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_69-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_82-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_82-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_85-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_85-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_88-default-6-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_88-xen-6-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-default-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-xen-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_96-default-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_96-xen-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_99-default-4-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_99-xen-4-2.1 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-20183171-1/ 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 An integer overflow flaw was found in the Linux kernel's create_elf_tables() function. An unprivileged local user with access to SUID (or otherwise privileged) binary could use this flaw to escalate their privileges on the system. Kernel versions 2.6.x, 3.10.x and 4.14.x are believed to be vulnerable. CVE-2018-14634 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_63-default-10-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_63-xen-10-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_66-default-9-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_66-xen-9-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_69-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_69-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_82-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_82-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_85-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_85-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_88-default-6-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_88-xen-6-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-default-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-xen-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_96-default-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_96-xen-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_99-default-4-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_99-xen-4-2.1 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-20183171-1/ https://www.suse.com/security/cve/CVE-2018-14634.html CVE-2018-14634 https://bugzilla.suse.com/1108912 SUSE Bug 1108912 https://bugzilla.suse.com/1108963 SUSE Bug 1108963 https://bugzilla.suse.com/1115893 SUSE Bug 1115893 https://bugzilla.suse.com/1120323 SUSE Bug 1120323 https://bugzilla.suse.com/1122265 SUSE Bug 1122265 https://bugzilla.suse.com/1188063 SUSE Bug 1188063 An issue was discovered in the Linux kernel through 4.18.8. The vmacache_flush_all function in mm/vmacache.c mishandles sequence number overflows. An attacker can trigger a use-after-free (and possibly gain privileges) via certain thread creation, map, unmap, invalidation, and dereference operations. CVE-2018-17182 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_63-default-10-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_63-xen-10-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_66-default-9-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_66-xen-9-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_69-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_69-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_82-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_82-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_85-default-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_85-xen-8-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_88-default-6-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_88-xen-6-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-default-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-xen-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_96-default-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_96-xen-5-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_99-default-4-2.1 SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_99-xen-4-2.1 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/2018/suse-su-20183171-1/ https://www.suse.com/security/cve/CVE-2018-17182.html CVE-2018-17182 https://bugzilla.suse.com/1108399 SUSE Bug 1108399 https://bugzilla.suse.com/1110233 SUSE Bug 1110233