SUSE-SU-2020:0388-1

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SUSE-SU-2020:0388-1

Summary: Security update for xen

Details: This update for xen fixes the following issues: - CVE-2018-12207: Fixed a race condition where untrusted virtual machines could have been using the Instruction Fetch Unit of the Intel CPU to cause a Machine Exception during Page Size Change, causing the CPU core to be non-functional (bsc#1155945 XSA-304). - CVE-2018-19965: Fixed a DoS from attempting to use INVPCID with a non-canonical addresses (bsc#1115045 XSA-279). - CVE-2019-11135: Aborting an asynchronous TSX operation on Intel CPUs with Transactional Memory support could be used to facilitate side-channel information leaks out of microarchitectural buffers, similar to the previously described 'Microarchitectural Data Sampling' attack. (bsc#1152497 XSA-305). - CVE-2019-12067: Fixed a null pointer dereference in QEMU AHCI (bsc#1145652). - CVE-2019-12068: Fixed an infinite loop while executing script (bsc#1146874). - CVE-2019-12155: Fixed a null pointer dereference while releasing spice resources (bsc#1135905). - CVE-2019-14378: Fixed a heap buffer overflow during packet reassembly in slirp networking implementation (bsc#1143797). - CVE-2019-15890: Fixed a use-after-free during packet reassembly (bsc#1149813). - CVE-2019-17340: Fixed grant table transfer issues on large hosts (XSA-284 bsc#1126140). - CVE-2019-17341: Fixed a race with pass-through device hotplug (XSA-285 bsc#1126141). - CVE-2019-17342: Fixed steal_page violating page_struct access discipline (XSA-287 bsc#1126192). - CVE-2019-17343: Fixed an inconsistent PV IOMMU discipline (XSA-288 bsc#1126195). - CVE-2019-17344: Fixed a missing preemption in x86 PV page table unvalidation (XSA-290 bsc#1126196). - CVE-2019-17347: Fixed a PV kernel context switch corruption (XSA-293 bsc#1126201). - CVE-2019-18420: Fixed a hypervisor crash that could be caused by malicious x86 PV guests, resulting in a denial of service (bsc#1154448 XSA-296). - CVE-2019-18421: Fixed a privilege escalation through malicious PV guest administrators (bsc#1154458 XSA-299). - CVE-2019-18424: Fixed a privilege escalation through DMA to physical devices by untrusted domains (bsc#1154461 XSA-302). - CVE-2019-18425: Fixed a privilege escalation from 32-bit PV guest used mode (bsc#1154456 XSA-298). - CVE-2019-19577: Fixed an issue where a malicious guest administrator could have caused Xen to access data structures while they are being modified leading to a crash (bsc#1158007 XSA-311). - CVE-2019-19578: Fixed an issue where a malicious or buggy PV guest could have caused hypervisor crash resulting in denial of service affecting the entire host (bsc#1158005 XSA-309). - CVE-2019-19579: Fixed a privilege escalation where an untrusted domain with access to a physical device can DMA into host memory (bsc#1157888 XSA-306). - CVE-2019-19580: Fixed a privilege escalation where a malicious PV guest administrator could have been able to escalate their privilege to that of the host (bsc#1158006 XSA-310). - CVE-2019-19581: Fixed a potential out of bounds on 32-bit Arm (bsc#1158003 XSA-307). - CVE-2019-19583: Fixed improper checks which could have allowed HVM/PVH guest userspace code to crash the guest, leading to a guest denial of service (bsc#1158004 XSA-308).

References: https://www.suse.com/support/update/announcement/2020/suse-su-20200388-1/, https://bugzilla.suse.com/1115045, 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/1126201, https://bugzilla.suse.com/1135905, https://bugzilla.suse.com/1143797, https://bugzilla.suse.com/1145652, https://bugzilla.suse.com/1146874, https://bugzilla.suse.com/1149813, https://bugzilla.suse.com/1152497, https://bugzilla.suse.com/1154448, https://bugzilla.suse.com/1154456, https://bugzilla.suse.com/1154458, https://bugzilla.suse.com/1154461, https://bugzilla.suse.com/1155945, https://bugzilla.suse.com/1157888, https://bugzilla.suse.com/1158003, https://bugzilla.suse.com/1158004, https://bugzilla.suse.com/1158005, https://bugzilla.suse.com/1158006, https://bugzilla.suse.com/1158007, https://bugzilla.suse.com/1161181, https://www.suse.com/security/cve/CVE-2018-12207, https://www.suse.com/security/cve/CVE-2018-19965, https://www.suse.com/security/cve/CVE-2019-11135, https://www.suse.com/security/cve/CVE-2019-12067, https://www.suse.com/security/cve/CVE-2019-12068, https://www.suse.com/security/cve/CVE-2019-12155, https://www.suse.com/security/cve/CVE-2019-14378, https://www.suse.com/security/cve/CVE-2019-15890, https://www.suse.com/security/cve/CVE-2019-17340, https://www.suse.com/security/cve/CVE-2019-17341, https://www.suse.com/security/cve/CVE-2019-17342, https://www.suse.com/security/cve/CVE-2019-17343, https://www.suse.com/security/cve/CVE-2019-17344, https://www.suse.com/security/cve/CVE-2019-17347, https://www.suse.com/security/cve/CVE-2019-18420, https://www.suse.com/security/cve/CVE-2019-18421, https://www.suse.com/security/cve/CVE-2019-18424, https://www.suse.com/security/cve/CVE-2019-18425, https://www.suse.com/security/cve/CVE-2019-19577, https://www.suse.com/security/cve/CVE-2019-19578, https://www.suse.com/security/cve/CVE-2019-19579, https://www.suse.com/security/cve/CVE-2019-19580, https://www.suse.com/security/cve/CVE-2019-19581, https://www.suse.com/security/cve/CVE-2019-19583, https://www.suse.com/security/cve/CVE-2020-7211