openSUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: openSUSE-SU-2018:2434-1 Rating: important References: #1027519 #1091107 #1103276 Cross-References: CVE-2018-3646 Affected Products: openSUSE Leap 42.3 ______________________________________________________________________________ An update that solves one vulnerability and has two fixes is now available. Description: This update for xen fixes the following security issues: - CVE-2018-3646: Systems with microprocessors utilizing speculative execution and address translations may have allowed unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis (bsc#1091107, bsc#1027519). - Incorrect MSR_DEBUGCTL handling let guests enable BTS allowing a malicious or buggy guest administrator can lock up the entire host (bsc#1103276) 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-2018-910=1 Package List: - openSUSE Leap 42.3 (x86_64): xen-4.9.2_10-28.1 xen-debugsource-4.9.2_10-28.1 xen-devel-4.9.2_10-28.1 xen-doc-html-4.9.2_10-28.1 xen-libs-4.9.2_10-28.1 xen-libs-debuginfo-4.9.2_10-28.1 xen-tools-4.9.2_10-28.1 xen-tools-debuginfo-4.9.2_10-28.1 xen-tools-domU-4.9.2_10-28.1 xen-tools-domU-debuginfo-4.9.2_10-28.1 References: https://www.suse.com/security/cve/CVE-2018-3646.html https://bugzilla.suse.com/1027519 https://bugzilla.suse.com/1091107 https://bugzilla.suse.com/1103276