Security update for the Linux Kernel (Live Patch 9 for SLE 12 SP3) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2018:1639-1 Final 1 1 2018-06-11T08:39:26Z current 2018-06-11T08:39:26Z 2018-06-11T08:39:26Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 9 for SLE 12 SP3) This update for the Linux Kernel 4.4.114-94_14 fixes several issues. The following security issues were fixed: - CVE-2017-13166: An elevation of privilege vulnerability in the kernel v4l2 video driver was fixed. (bsc#1085447). - CVE-2018-8897: A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs (bsc#1090368). - CVE-2018-8781: The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c had an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space (bsc#1090646). - bsc#1083125: Fixed kgraft: small race in reversion code - CVE-2018-1087: kernel KVM was vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest (bsc#1090869) before 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-SP3-2018-1108 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-20181639-1/ Link for SUSE-SU-2018:1639-1 https://lists.suse.com/pipermail/sle-security-updates/2018-June/004173.html E-Mail link for SUSE-SU-2018:1639-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1083125 SUSE Bug 1083125 https://bugzilla.suse.com/1085447 SUSE Bug 1085447 https://bugzilla.suse.com/1090368 SUSE Bug 1090368 https://bugzilla.suse.com/1090646 SUSE Bug 1090646 https://bugzilla.suse.com/1090869 SUSE Bug 1090869 https://www.suse.com/security/cve/CVE-2017-13166/ SUSE CVE CVE-2017-13166 page https://www.suse.com/security/cve/CVE-2018-1087/ SUSE CVE CVE-2018-1087 page https://www.suse.com/security/cve/CVE-2018-8781/ SUSE CVE CVE-2018-8781 page https://www.suse.com/security/cve/CVE-2018-8897/ SUSE CVE CVE-2018-8897 page SUSE Linux Enterprise Live Patching 12 SP3 kgraft-patch-4_4_114-94_14-default-4-2.1 kgraft-patch-4_4_114-94_14-default-4-2.1 as a component of SUSE Linux Enterprise Live Patching 12 SP3 An elevation of privilege vulnerability in the kernel v4l2 video driver. Product: Android. Versions: Android kernel. Android ID A-34624167. CVE-2017-13166 SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_114-94_14-default-4-2.1 moderate 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P 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-20181639-1/ https://www.suse.com/security/cve/CVE-2017-13166.html CVE-2017-13166 https://bugzilla.suse.com/1072865 SUSE Bug 1072865 https://bugzilla.suse.com/1074488 SUSE Bug 1074488 https://bugzilla.suse.com/1085447 SUSE Bug 1085447 https://bugzilla.suse.com/1087082 SUSE Bug 1087082 https://bugzilla.suse.com/1091815 SUSE Bug 1091815 kernel KVM before versions kernel 4.16, kernel 4.16-rc7, kernel 4.17-rc1, kernel 4.17-rc2 and kernel 4.17-rc3 is vulnerable to a flaw in the way the Linux kernel's KVM hypervisor handled exceptions delivered after a stack switch operation via Mov SS or Pop SS instructions. During the stack switch operation, the processor did not deliver interrupts and exceptions, rather they are delivered once the first instruction after the stack switch is executed. An unprivileged KVM guest user could use this flaw to crash the guest or, potentially, escalate their privileges in the guest. CVE-2018-1087 SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_114-94_14-default-4-2.1 important 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P 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-20181639-1/ https://www.suse.com/security/cve/CVE-2018-1087.html CVE-2018-1087 https://bugzilla.suse.com/1087088 SUSE Bug 1087088 The udl_fb_mmap function in drivers/gpu/drm/udl/udl_fb.c at the Linux kernel version 3.4 and up to and including 4.15 has an integer-overflow vulnerability allowing local users with access to the udldrmfb driver to obtain full read and write permissions on kernel physical pages, resulting in a code execution in kernel space. CVE-2018-8781 SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_114-94_14-default-4-2.1 moderate 7.2 AV:L/AC:L/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/2018/suse-su-20181639-1/ https://www.suse.com/security/cve/CVE-2018-8781.html CVE-2018-8781 https://bugzilla.suse.com/1087082 SUSE Bug 1087082 https://bugzilla.suse.com/1090643 SUSE Bug 1090643 https://bugzilla.suse.com/1090646 SUSE Bug 1090646 A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures Software Developer's Manual (SDM) was mishandled in the development of some or all operating-system kernels, resulting in unexpected behavior for #DB exceptions that are deferred by MOV SS or POP SS, as demonstrated by (for example) privilege escalation in Windows, macOS, some Xen configurations, or FreeBSD, or a Linux kernel crash. The MOV to SS and POP SS instructions inhibit interrupts (including NMIs), data breakpoints, and single step trap exceptions until the instruction boundary following the next instruction (SDM Vol. 3A; section 6.8.3). (The inhibited data breakpoints are those on memory accessed by the MOV to SS or POP to SS instruction itself.) Note that debug exceptions are not inhibited by the interrupt enable (EFLAGS.IF) system flag (SDM Vol. 3A; section 2.3). If the instruction following the MOV to SS or POP to SS instruction is an instruction like SYSCALL, SYSENTER, INT 3, etc. that transfers control to the operating system at CPL < 3, the debug exception is delivered after the transfer to CPL < 3 is complete. OS kernels may not expect this order of events and may therefore experience unexpected behavior when it occurs. CVE-2018-8897 SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_114-94_14-default-4-2.1 important 7.2 AV:L/AC:L/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/2018/suse-su-20181639-1/ https://www.suse.com/security/cve/CVE-2018-8897.html CVE-2018-8897 https://bugzilla.suse.com/1087078 SUSE Bug 1087078 https://bugzilla.suse.com/1087088 SUSE Bug 1087088 https://bugzilla.suse.com/1090368 SUSE Bug 1090368 https://bugzilla.suse.com/1090820 SUSE Bug 1090820 https://bugzilla.suse.com/1090869 SUSE Bug 1090869 https://bugzilla.suse.com/1092497 SUSE Bug 1092497 https://bugzilla.suse.com/1093522 SUSE Bug 1093522 https://bugzilla.suse.com/1093524 SUSE Bug 1093524 https://bugzilla.suse.com/1098813 SUSE Bug 1098813 https://bugzilla.suse.com/1100835 SUSE Bug 1100835 https://bugzilla.suse.com/1115893 SUSE Bug 1115893 https://bugzilla.suse.com/1178658 SUSE Bug 1178658