Recommended update for xen SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2019:1199-1 Final 1 1 2019-04-12T12:54:27Z current 2019-04-12T12:54:27Z 2019-04-12T12:54:27Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Recommended update for xen This update for xen fixes the following issues: Security issues fixed: - CVE-2018-19967: Fixed HLE constructs that allowed guests to lock up the host, resulting in a Denial of Service (DoS). (XSA-282) (bsc#1114988) - Fixed an issue which could allow malicious PV guests may cause a host crash or gain access to data pertaining to other guests.Additionally, vulnerable configurations are likely to be unstable even in the absence of an attack (bsc#1126198). - Fixed multiple access violations introduced by XENMEM_exchange hypercall which could allow a single PV guest to leak arbitrary amounts of memory, leading to a denial of service (bsc#1126192). - Fixed an issue which could allow a malicious unprivileged guest userspace process to escalate its privilege to that of other userspace processes in the same guest and potentially thereby to that of the guest operating system (bsc#1126201). - Fixed an issue which could allow malicious or buggy x86 PV guest kernels to mount a Denial of Service attack affecting the whole system (bsc#1126197). - Fixed an issue which could allow an untrusted PV domain with access to a physical device to DMA into its own pagetables leading to privilege escalation (bsc#1126195). - Fixed an issue which could allow a malicious or buggy x86 PV guest kernels can mount a Denial of Service attack affecting the whole system (bsc#1126196). - Fixed an issue which could allow malicious 64bit PV guests to cause a host crash (bsc#1127400). - Fixed an issue which could allow malicious or buggy guests with passed through PCI devices to be able to escalate their privileges, crash the host, or access data belonging to other guests. Additionally memory leaks were also possible (bsc#1126140). - Fixed a race condition issue which could allow malicious PV guests to escalate their privilege to that of the hypervisor (bsc#1126141). Other issues fixed: - Upstream bug fixes (bsc#1027519) - Fixed an issue where setup of grant_tables and other variables may fail (bsc#1126325). - Added a requirement for xen, xl.cfg firmware='pvgrub32|pvgrub64 (bsc#1127620). - Added Xen cmdline option 'suse_vtsc_tolerance' to avoid TSC emulation for HVM domUs (bsc#1026236). This update was imported from the SUSE:SLE-15:Update update project. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-2019-1199 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://lists.opensuse.org/opensuse-security-announce/2019-04/msg00057.html E-Mail link for openSUSE-SU-2019:1199-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1026236 SUSE Bug 1026236 https://bugzilla.suse.com/1027519 SUSE Bug 1027519 https://bugzilla.suse.com/1114988 SUSE Bug 1114988 https://bugzilla.suse.com/1126140 SUSE Bug 1126140 https://bugzilla.suse.com/1126141 SUSE Bug 1126141 https://bugzilla.suse.com/1126192 SUSE Bug 1126192 https://bugzilla.suse.com/1126195 SUSE Bug 1126195 https://bugzilla.suse.com/1126196 SUSE Bug 1126196 https://bugzilla.suse.com/1126197 SUSE Bug 1126197 https://bugzilla.suse.com/1126198 SUSE Bug 1126198 https://bugzilla.suse.com/1126201 SUSE Bug 1126201 https://bugzilla.suse.com/1126325 SUSE Bug 1126325 https://bugzilla.suse.com/1127400 SUSE Bug 1127400 https://bugzilla.suse.com/1127620 SUSE Bug 1127620 https://www.suse.com/security/cve/CVE-2018-19967/ SUSE CVE CVE-2018-19967 page openSUSE Leap 15.0 xen-4.10.3_02-lp150.2.16.1 xen-devel-4.10.3_02-lp150.2.16.1 xen-doc-html-4.10.3_02-lp150.2.16.1 xen-libs-4.10.3_02-lp150.2.16.1 xen-libs-32bit-4.10.3_02-lp150.2.16.1 xen-tools-4.10.3_02-lp150.2.16.1 xen-tools-domU-4.10.3_02-lp150.2.16.1 xen-4.10.3_02-lp150.2.16.1 as a component of openSUSE Leap 15.0 xen-devel-4.10.3_02-lp150.2.16.1 as a component of openSUSE Leap 15.0 xen-doc-html-4.10.3_02-lp150.2.16.1 as a component of openSUSE Leap 15.0 xen-libs-4.10.3_02-lp150.2.16.1 as a component of openSUSE Leap 15.0 xen-libs-32bit-4.10.3_02-lp150.2.16.1 as a component of openSUSE Leap 15.0 xen-tools-4.10.3_02-lp150.2.16.1 as a component of openSUSE Leap 15.0 xen-tools-domU-4.10.3_02-lp150.2.16.1 as a component of openSUSE Leap 15.0 An issue was discovered in Xen through 4.11.x on Intel x86 platforms allowing guest OS users to cause a denial of service (host OS hang) because Xen does not work around Intel's mishandling of certain HLE transactions associated with the KACQUIRE instruction prefix. CVE-2018-19967 openSUSE Leap 15.0:xen-4.10.3_02-lp150.2.16.1 openSUSE Leap 15.0:xen-devel-4.10.3_02-lp150.2.16.1 openSUSE Leap 15.0:xen-doc-html-4.10.3_02-lp150.2.16.1 openSUSE Leap 15.0:xen-libs-32bit-4.10.3_02-lp150.2.16.1 openSUSE Leap 15.0:xen-libs-4.10.3_02-lp150.2.16.1 openSUSE Leap 15.0:xen-tools-4.10.3_02-lp150.2.16.1 openSUSE Leap 15.0:xen-tools-domU-4.10.3_02-lp150.2.16.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://lists.opensuse.org/opensuse-security-announce/2019-04/msg00057.html https://www.suse.com/security/cve/CVE-2018-19967.html CVE-2018-19967 https://bugzilla.suse.com/1114988 SUSE Bug 1114988 https://bugzilla.suse.com/1178658 SUSE Bug 1178658