openSUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: openSUSE-SU-2019:1226-1 Rating: important References: #1026236 #1027519 #1069468 #1105528 #1114988 #1115040 #1115045 #1115047 #1116380 #1117756 #1119161 #1123157 #1126140 #1126141 #1126192 #1126195 #1126196 #1126197 #1126198 #1126201 #1126325 #1127400 #1129623 Cross-References: CVE-2018-19665 CVE-2018-19961 CVE-2018-19962 CVE-2018-19965 CVE-2018-19966 CVE-2018-19967 CVE-2019-6778 CVE-2019-9824 Affected Products: openSUSE Leap 42.3 ______________________________________________________________________________ An update that solves 8 vulnerabilities and has 15 fixes is now available. Description: 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) - CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp (bsc#1123157). - 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). - 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). - CVE-2019-9824: Fixed an information leak in SLiRP networking implementation which could allow a user/process to read uninitialised stack memory contents (bsc#1129623). - CVE-2018-19961 CVE-2018-19962: Fixed insufficient TLB flushing / improper large page mappings with AMD IOMMUs (XSA-275)(bsc#1115040). - CVE-2018-19965: Fixed denial of service issue from attempting to use INVPCID with a non-canonical addresses (XSA-279)(bsc#1115045). - CVE-2018-19966: Fixed issue introduced by XSA-240 that could have caused conflicts with shadow paging (XSA-280)(bsc#1115047). - 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 malicious 64bit PV guests to cause a host crash (bsc#1127400). - 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). Other issues addressed: - Upstream bug fixes (bsc#1027519) - Fixed an issue where live migrations were failing when spectre was enabled on xen boot cmdline (bsc#1116380). - Fixed an issue where setup of grant_tables and other variables may fail (bsc#1126325). - Fixed a building issue (bsc#1119161). - Fixed an issue where xpti=no-dom0 was not working as expected (bsc#1105528). - Packages should no longer use /var/adm/fillup-templates (bsc#1069468). - Added Xen cmdline option "suse_vtsc_tolerance" to avoid TSC emulation for HVM domUs (bsc#1026236). This update was imported from the SUSE:SLE-12-SP3:Update update project. Patch Instructions: To install this openSUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - openSUSE Leap 42.3: zypper in -t patch openSUSE-2019-1226=1 Package List: - openSUSE Leap 42.3 (i586 x86_64): xen-debugsource-4.9.4_02-37.1 xen-devel-4.9.4_02-37.1 xen-libs-4.9.4_02-37.1 xen-libs-debuginfo-4.9.4_02-37.1 xen-tools-domU-4.9.4_02-37.1 xen-tools-domU-debuginfo-4.9.4_02-37.1 - openSUSE Leap 42.3 (x86_64): xen-4.9.4_02-37.1 xen-doc-html-4.9.4_02-37.1 xen-libs-32bit-4.9.4_02-37.1 xen-libs-debuginfo-32bit-4.9.4_02-37.1 xen-tools-4.9.4_02-37.1 xen-tools-debuginfo-4.9.4_02-37.1 References: https://www.suse.com/security/cve/CVE-2018-19665.html https://www.suse.com/security/cve/CVE-2018-19961.html https://www.suse.com/security/cve/CVE-2018-19962.html https://www.suse.com/security/cve/CVE-2018-19965.html https://www.suse.com/security/cve/CVE-2018-19966.html https://www.suse.com/security/cve/CVE-2018-19967.html https://www.suse.com/security/cve/CVE-2019-6778.html https://www.suse.com/security/cve/CVE-2019-9824.html https://bugzilla.suse.com/1026236 https://bugzilla.suse.com/1027519 https://bugzilla.suse.com/1069468 https://bugzilla.suse.com/1105528 https://bugzilla.suse.com/1114988 https://bugzilla.suse.com/1115040 https://bugzilla.suse.com/1115045 https://bugzilla.suse.com/1115047 https://bugzilla.suse.com/1116380 https://bugzilla.suse.com/1117756 https://bugzilla.suse.com/1119161 https://bugzilla.suse.com/1123157 https://bugzilla.suse.com/1126140 https://bugzilla.suse.com/1126141 https://bugzilla.suse.com/1126192 https://bugzilla.suse.com/1126195 https://bugzilla.suse.com/1126196 https://bugzilla.suse.com/1126197 https://bugzilla.suse.com/1126198 https://bugzilla.suse.com/1126201 https://bugzilla.suse.com/1126325 https://bugzilla.suse.com/1127400 https://bugzilla.suse.com/1129623 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org