openSUSE Security Update: Recommended update for xen ______________________________________________________________________________
Announcement ID: openSUSE-SU-2019:1199-1 Rating: important References: #1026236 #1027519 #1114988 #1126140 #1126141 #1126192 #1126195 #1126196 #1126197 #1126198 #1126201 #1126325 #1127400 #1127620 Cross-References: CVE-2018-19967 Affected Products: openSUSE Leap 15.0 ______________________________________________________________________________
An update that solves one vulnerability and has 13 fixes is now available.
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.
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 15.0:
zypper in -t patch openSUSE-2019-1199=1
- openSUSE Leap 15.0 (i586 x86_64):
xen-debugsource-4.10.3_02-lp126.96.36.199 xen-devel-4.10.3_02-lp188.8.131.52 xen-libs-4.10.3_02-lp184.108.40.206 xen-libs-debuginfo-4.10.3_02-lp220.127.116.11 xen-tools-domU-4.10.3_02-lp18.104.22.168 xen-tools-domU-debuginfo-4.10.3_02-lp22.214.171.124
- openSUSE Leap 15.0 (x86_64):
xen-4.10.3_02-lp126.96.36.199 xen-doc-html-4.10.3_02-lp188.8.131.52 xen-libs-32bit-4.10.3_02-lp184.108.40.206 xen-libs-32bit-debuginfo-4.10.3_02-lp220.127.116.11 xen-tools-4.10.3_02-lp18.104.22.168 xen-tools-debuginfo-4.10.3_02-lp22.214.171.124
https://www.suse.com/security/cve/CVE-2018-19967.html https://bugzilla.suse.com/1026236 https://bugzilla.suse.com/1027519 https://bugzilla.suse.com/1114988 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/1127620