SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2018:0678-1 Rating: important References: #1024307 #1030144 #1061081 #1068032 #1070158 #1070159 #1070160 #1070163 #1074562 #1076116 #1076180 #1080635 #1080662 Cross-References: CVE-2017-11334 CVE-2017-15595 CVE-2017-17563 CVE-2017-17564 CVE-2017-17565 CVE-2017-17566 CVE-2017-18030 CVE-2017-5715 CVE-2017-5753 CVE-2017-5754 CVE-2017-5898 CVE-2018-5683 CVE-2018-7540 CVE-2018-7541 Affected Products: SUSE Linux Enterprise Server 11-SP3-LTSS SUSE Linux Enterprise Point of Sale 11-SP3 SUSE Linux Enterprise Debuginfo 11-SP3 ______________________________________________________________________________ An update that fixes 14 vulnerabilities is now available. Description: This update for xen fixes several issues. These security issues were fixed: - CVE-2017-5753, CVE-2017-5715, CVE-2017-5754: Prevent information leaks via side effects of speculative execution, aka "Spectre" and "Meltdown" attacks (bsc#1074562, bsc#1068032) - CVE-2018-5683: The vga_draw_text function allowed local OS guest privileged users to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging improper memory address validation (bsc#1076116). - CVE-2017-18030: The cirrus_invalidate_region function allowed local OS guest privileged users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to negative pitch (bsc#1076180). - CVE-2017-15595: x86 PV guest OS users were able to cause a DoS (unbounded recursion, stack consumption, and hypervisor crash) or possibly gain privileges via crafted page-table stacking (bsc#1061081) - CVE-2017-17566: Prevent PV guest OS users to cause a denial of service (host OS crash) or gain host OS privileges in shadow mode by mapping a certain auxiliary page (bsc#1070158). - CVE-2017-17563: Prevent guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging an incorrect mask for reference-count overflow checking in shadow mode (bsc#1070159). - CVE-2017-17564: Prevent guest OS users to cause a denial of service (host OS crash) or gain host OS privileges by leveraging incorrect error handling for reference counting in shadow mode (bsc#1070160). - CVE-2017-17565: Prevent PV guest OS users to cause a denial of service (host OS crash) if shadow mode and log-dirty mode are in place, because of an incorrect assertion related to M2P (bsc#1070163). - Added missing intermediate preemption checks for guest requesting removal of memory. This allowed malicious guest administrator to cause denial of service due to the high cost of this operation (bsc#1080635). - Because of XEN not returning the proper error messages when transitioning grant tables from v2 to v1 a malicious guest was able to cause DoS or potentially allowed for privilege escalation as well as information leaks (bsc#1080662). - CVE-2017-5898: The CCID Card device emulator support was vulnerable to an integer overflow flaw allowing a privileged user to crash the Qemu process on the host resulting in DoS (bsc#1024307) - Unprivileged domains could have issued well-timed writes to xenstore which conflict with transactions to stall progress of the control domain or driver domain, possibly leading to DoS (bsc#1030144, XSA-206). Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server 11-SP3-LTSS: zypper in -t patch slessp3-xen-13511=1 - SUSE Linux Enterprise Point of Sale 11-SP3: zypper in -t patch sleposp3-xen-13511=1 - SUSE Linux Enterprise Debuginfo 11-SP3: zypper in -t patch dbgsp3-xen-13511=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64): xen-kmp-default-4.2.5_21_3.0.101_0.47.106.14-45.19.1 xen-libs-4.2.5_21-45.19.1 xen-tools-domU-4.2.5_21-45.19.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64): xen-4.2.5_21-45.19.1 xen-doc-html-4.2.5_21-45.19.1 xen-doc-pdf-4.2.5_21-45.19.1 xen-libs-32bit-4.2.5_21-45.19.1 xen-tools-4.2.5_21-45.19.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586): xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.14-45.19.1 - SUSE Linux Enterprise Point of Sale 11-SP3 (i586): xen-kmp-default-4.2.5_21_3.0.101_0.47.106.14-45.19.1 xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.14-45.19.1 xen-libs-4.2.5_21-45.19.1 xen-tools-domU-4.2.5_21-45.19.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64): xen-debuginfo-4.2.5_21-45.19.1 xen-debugsource-4.2.5_21-45.19.1 References: https://www.suse.com/security/cve/CVE-2017-11334.html https://www.suse.com/security/cve/CVE-2017-15595.html https://www.suse.com/security/cve/CVE-2017-17563.html https://www.suse.com/security/cve/CVE-2017-17564.html https://www.suse.com/security/cve/CVE-2017-17565.html https://www.suse.com/security/cve/CVE-2017-17566.html https://www.suse.com/security/cve/CVE-2017-18030.html https://www.suse.com/security/cve/CVE-2017-5715.html https://www.suse.com/security/cve/CVE-2017-5753.html https://www.suse.com/security/cve/CVE-2017-5754.html https://www.suse.com/security/cve/CVE-2017-5898.html https://www.suse.com/security/cve/CVE-2018-5683.html https://www.suse.com/security/cve/CVE-2018-7540.html https://www.suse.com/security/cve/CVE-2018-7541.html https://bugzilla.suse.com/1024307 https://bugzilla.suse.com/1030144 https://bugzilla.suse.com/1061081 https://bugzilla.suse.com/1068032 https://bugzilla.suse.com/1070158 https://bugzilla.suse.com/1070159 https://bugzilla.suse.com/1070160 https://bugzilla.suse.com/1070163 https://bugzilla.suse.com/1074562 https://bugzilla.suse.com/1076116 https://bugzilla.suse.com/1076180 https://bugzilla.suse.com/1080635 https://bugzilla.suse.com/1080662 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org