SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:2326-1 Rating: important References: #1002573 #1026236 #1035231 #1037840 #1046637 #1049578 #1051787 #1051788 #1051789 #1052686 #1055695 Cross-References: CVE-2016-9603 CVE-2017-10664 CVE-2017-11434 CVE-2017-12135 CVE-2017-12136 CVE-2017-12137 CVE-2017-12855 Affected Products: SUSE Linux Enterprise Software Development Kit 12-SP2 SUSE Linux Enterprise Server 12-SP2 SUSE Linux Enterprise Desktop 12-SP2 SUSE Container as a Service Platform ALL ______________________________________________________________________________ An update that solves 7 vulnerabilities and has four fixes is now available. Description: This update for xen to version 4.7.3 fixes several issues. These security issues were fixed: - CVE-2017-12135: Unbounded recursion in grant table code allowed a malicious guest to crash the host or potentially escalate privileges/leak information (XSA-226, bsc#1051787). - CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for privilege escalation (XSA-227, bsc#1051788). - CVE-2017-12136: Race conditions with maptrack free list handling allows a malicious guest administrator to crash the host or escalate their privilege to that of the host (XSA-228, bsc#1051789). - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049578). - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046637). - CVE-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to potentially leaking sensitive information (XSA-230 CVE-2017-12855). These non-security issues were fixed: - bsc#1055695: XEN: 11SP4 and 12SP3 HVM guests can not be restored after the save using xl stack - bsc#1035231: Migration of HVM domU did not use superpages on destination dom0 - bsc#1002573: Optimized LVM functions in block-dmmd block-dmmd - bsc#1037840: Xen-detect always showed HVM for PV guests 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 Software Development Kit 12-SP2: zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-1438=1 - SUSE Linux Enterprise Server 12-SP2: zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-1438=1 - SUSE Linux Enterprise Desktop 12-SP2: zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-1438=1 - SUSE Container as a Service Platform ALL: zypper in -t patch SUSE-CAASP-ALL-2017-1438=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 x86_64): xen-debugsource-4.7.3_03-43.9.1 xen-devel-4.7.3_03-43.9.1 - SUSE Linux Enterprise Server 12-SP2 (x86_64): xen-4.7.3_03-43.9.1 xen-debugsource-4.7.3_03-43.9.1 xen-doc-html-4.7.3_03-43.9.1 xen-libs-32bit-4.7.3_03-43.9.1 xen-libs-4.7.3_03-43.9.1 xen-libs-debuginfo-32bit-4.7.3_03-43.9.1 xen-libs-debuginfo-4.7.3_03-43.9.1 xen-tools-4.7.3_03-43.9.1 xen-tools-debuginfo-4.7.3_03-43.9.1 xen-tools-domU-4.7.3_03-43.9.1 xen-tools-domU-debuginfo-4.7.3_03-43.9.1 - SUSE Linux Enterprise Desktop 12-SP2 (x86_64): xen-4.7.3_03-43.9.1 xen-debugsource-4.7.3_03-43.9.1 xen-libs-32bit-4.7.3_03-43.9.1 xen-libs-4.7.3_03-43.9.1 xen-libs-debuginfo-32bit-4.7.3_03-43.9.1 xen-libs-debuginfo-4.7.3_03-43.9.1 - SUSE Container as a Service Platform ALL (x86_64): xen-debugsource-4.7.3_03-43.9.1 xen-libs-4.7.3_03-43.9.1 xen-libs-debuginfo-4.7.3_03-43.9.1 xen-tools-domU-4.7.3_03-43.9.1 xen-tools-domU-debuginfo-4.7.3_03-43.9.1 References: https://www.suse.com/security/cve/CVE-2016-9603.html https://www.suse.com/security/cve/CVE-2017-10664.html https://www.suse.com/security/cve/CVE-2017-11434.html https://www.suse.com/security/cve/CVE-2017-12135.html https://www.suse.com/security/cve/CVE-2017-12136.html https://www.suse.com/security/cve/CVE-2017-12137.html https://www.suse.com/security/cve/CVE-2017-12855.html https://bugzilla.suse.com/1002573 https://bugzilla.suse.com/1026236 https://bugzilla.suse.com/1035231 https://bugzilla.suse.com/1037840 https://bugzilla.suse.com/1046637 https://bugzilla.suse.com/1049578 https://bugzilla.suse.com/1051787 https://bugzilla.suse.com/1051788 https://bugzilla.suse.com/1051789 https://bugzilla.suse.com/1052686 https://bugzilla.suse.com/1055695 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org