SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:1715-1 Rating: important References: #1034845 #1037243 #1042160 #1042863 #1042882 #1042893 #1042915 #1042931 #1042938 Cross-References: CVE-2017-8309 CVE-2017-8905 CVE-2017-9330 Affected Products: SUSE Linux Enterprise Server 11-SP3-LTSS SUSE Linux Enterprise Point of Sale 11-SP3 SUSE Linux Enterprise Debuginfo 11-SP3 ______________________________________________________________________________ An update that solves three vulnerabilities and has 6 fixes is now available. Description: This update for xen fixes the following security issues: - blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests (XSA-216, bsc#1042863) - Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882) - Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893) - Insufficient reference counts during shadow emulation allowed a malicious pair of guest to elevate their privileges to the privileges that XEN runs under (XSA-219, bsc#1042915) - Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931) - Grant table operations mishandled reference counts allowing malicious guests to escape (XSA-224, bsc#1042938) - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042160) - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037243) - CVE-2017-8905: Xen a failsafe callback, which might have allowed PV guest OS users to execute arbitrary code on the host OS (XSA-215, bsc#1034845). Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server 11-SP3-LTSS: zypper in -t patch slessp3-xen-13181=1 - SUSE Linux Enterprise Point of Sale 11-SP3: zypper in -t patch sleposp3-xen-13181=1 - SUSE Linux Enterprise Debuginfo 11-SP3: zypper in -t patch dbgsp3-xen-13181=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64): xen-kmp-default-4.2.5_21_3.0.101_0.47.102-44.1 xen-libs-4.2.5_21-44.1 xen-tools-domU-4.2.5_21-44.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64): xen-4.2.5_21-44.1 xen-doc-html-4.2.5_21-44.1 xen-doc-pdf-4.2.5_21-44.1 xen-libs-32bit-4.2.5_21-44.1 xen-tools-4.2.5_21-44.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586): xen-kmp-pae-4.2.5_21_3.0.101_0.47.102-44.1 - SUSE Linux Enterprise Point of Sale 11-SP3 (i586): xen-kmp-default-4.2.5_21_3.0.101_0.47.102-44.1 xen-kmp-pae-4.2.5_21_3.0.101_0.47.102-44.1 xen-libs-4.2.5_21-44.1 xen-tools-domU-4.2.5_21-44.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64): xen-debuginfo-4.2.5_21-44.1 xen-debugsource-4.2.5_21-44.1 References: https://www.suse.com/security/cve/CVE-2017-8309.html https://www.suse.com/security/cve/CVE-2017-8905.html https://www.suse.com/security/cve/CVE-2017-9330.html https://bugzilla.suse.com/1034845 https://bugzilla.suse.com/1037243 https://bugzilla.suse.com/1042160 https://bugzilla.suse.com/1042863 https://bugzilla.suse.com/1042882 https://bugzilla.suse.com/1042893 https://bugzilla.suse.com/1042915 https://bugzilla.suse.com/1042931 https://bugzilla.suse.com/1042938 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org