SUSE-SU-2018:4300-1

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SUSE-SU-2018:4300-1

Summary: Security update for xen

Details: This update for xen fixes the following issues: Update to Xen 4.10.2 bug fix release (bsc#1027519). Security vulnerabilities fixed: - CVE-2018-19961, CVE-2018-19962: Fixed an issue related to insufficient TLB flushing with AMD IOMMUs, which potentially allowed a guest to escalate its privileges, may cause a Denial of Service (DoS) affecting the entire host, or may be able to access data it is not supposed to access. (XSA-275) (bsc#1115040) - CVE-2018-19965: Fixed an issue related to the INVPCID instruction in case non-canonical addresses are accessed, which may allow a guest to cause Xen to crash, resulting in a Denial of Service (DoS) affecting the entire host. (XSA-279) (bsc#1115045) - CVE-2018-19966: Fixed an issue related to a previous fix for XSA-240, which conflicted with shadow paging and allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-280) (bsc#1115047) - CVE-2018-18883: Fixed an issue related to inproper restriction of nested VT-x, which allowed a guest to cause Xen to crash, resulting in a Denial of Service (DoS). (XSA-278) (bsc#1114405) - CVE-2018-15468: Fixed incorrect MSR_DEBUGCTL handling, which allowed guests to enable Branch Trace Store and may cause a Denial of Service (DoS) of the entire host. (XSA-269) (bsc#1103276) - CVE-2018-15469: Fixed use of v2 grant tables on ARM, which were not properly implemented and may cause a Denial of Service (DoS). (XSA-268) (bsc#1103275) - CVE-2018-15470: Fixed an issue in the logic in oxenstored for handling writes, which allowed a guest to write memory unbounded leading to system-wide Denial of Service (DoS). (XSA-272) (bsc#1103279) - CVE-2018-3646: Mitigations for VMM aspects of L1 Terminal Fault (XSA-273) (bsc#1091107) Other bugs fixed: - Fixed an issue related to a domU hang on SLE12-SP3 HV (bsc#1108940) - Fixed an issue with xpti=no-dom0 not working as expected (bsc#1105528) - Fixed a kernel oops related to fs/dcache.c called by d_materialise_unique() (bsc#1094508)

References: https://www.suse.com/support/update/announcement/2018/suse-su-20184300-1/, https://bugzilla.suse.com/1027519, https://bugzilla.suse.com/1078292, https://bugzilla.suse.com/1091107, https://bugzilla.suse.com/1094508, https://bugzilla.suse.com/1103275, https://bugzilla.suse.com/1103276, https://bugzilla.suse.com/1103279, https://bugzilla.suse.com/1105528, https://bugzilla.suse.com/1108940, https://bugzilla.suse.com/1114405, https://bugzilla.suse.com/1115040, https://bugzilla.suse.com/1115045, https://bugzilla.suse.com/1115047, https://www.suse.com/security/cve/CVE-2018-15468, https://www.suse.com/security/cve/CVE-2018-15469, https://www.suse.com/security/cve/CVE-2018-15470, https://www.suse.com/security/cve/CVE-2018-18883, https://www.suse.com/security/cve/CVE-2018-19961, https://www.suse.com/security/cve/CVE-2018-19962, https://www.suse.com/security/cve/CVE-2018-19965, https://www.suse.com/security/cve/CVE-2018-19966, https://www.suse.com/security/cve/CVE-2018-3646