SUSE-SU-2019:0020-1
Vulnerability Summary
Timeline
Description
Security update for xen This update for xen fixes the following issues: 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-2018-19665: Fixed an integer overflow resulting in memory corruption in various Bluetooth functions, allowing this to crash qemu process resulting in Denial of Service (DoS). (bsc#1117756). - CVE-2018-18849: Fixed an out of bounds memory access in the LSI53C895A SCSI host bus adapter emulation, which allowed a user and/or process to crash the qemu process resulting in a Denial of Service (DoS). (bsc#1114423) 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 an issue with live migrations, which used to fail when spectre is enabled on xen boot cmdline (bsc#1116380) - Upstream bug fixes (bsc#1027519)
Affected Systems
- suse•xen&distro=SUSE Enterprise Storage 4
< 4.7.6_05-43.45.1
- suse•xen&distro=SUSE Linux Enterprise Server 12 SP2-BCL
< 4.7.6_05-43.45.1
- suse•xen&distro=SUSE Linux Enterprise Server 12 SP2-LTSS
< 4.7.6_05-43.45.1
- suse•xen&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP2
< 4.7.6_05-43.45.1
- suse•xen&distro=SUSE OpenStack Cloud 7
< 4.7.6_05-43.45.1
References (16)
- https://www.suse.com/support/update/announcement/2019/suse-su-20190020-1/
- https://bugzilla.suse.com/1027519
- https://bugzilla.suse.com/1105528
- https://bugzilla.suse.com/1108940
- https://bugzilla.suse.com/1114423
- 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://www.suse.com/security/cve/CVE-2018-18849
- https://www.suse.com/security/cve/CVE-2018-19665
- 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