SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:2339-1 Rating: important References: #1046637 #1048920 #1049578 #1051787 #1051788 #1052686 Cross-References: CVE-2017-10664 CVE-2017-11334 CVE-2017-11434 CVE-2017-12135 CVE-2017-12137 CVE-2017-12855 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 fixes 6 vulnerabilities is now available. Description: This update for xen fixes the following issues: - CVE-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to potentially leaking sensitive information (XSA-230, bsc#1052686). - 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-2017-11334: The address_space_write_continue function in exec.c allowed local guest OS privileged users to cause a denial of service (out-of-bounds access and guest instance crash) by leveraging use of qemu_map_ram_ptr to access guest ram block area (bsc#1048920). - 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). 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-13259=1 - SUSE Linux Enterprise Point of Sale 11-SP3: zypper in -t patch sleposp3-xen-13259=1 - SUSE Linux Enterprise Debuginfo 11-SP3: zypper in -t patch dbgsp3-xen-13259=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_0.47.105-45.5.1 xen-libs-4.2.5_21-45.5.1 xen-tools-domU-4.2.5_21-45.5.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64): xen-4.2.5_21-45.5.1 xen-doc-html-4.2.5_21-45.5.1 xen-doc-pdf-4.2.5_21-45.5.1 xen-libs-32bit-4.2.5_21-45.5.1 xen-tools-4.2.5_21-45.5.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586): xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.5.1 - SUSE Linux Enterprise Point of Sale 11-SP3 (i586): xen-kmp-default-4.2.5_21_3.0.101_0.47.105-45.5.1 xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.5.1 xen-libs-4.2.5_21-45.5.1 xen-tools-domU-4.2.5_21-45.5.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64): xen-debuginfo-4.2.5_21-45.5.1 xen-debugsource-4.2.5_21-45.5.1 References: https://www.suse.com/security/cve/CVE-2017-10664.html https://www.suse.com/security/cve/CVE-2017-11334.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-2017-12137.html https://www.suse.com/security/cve/CVE-2017-12855.html https://bugzilla.suse.com/1046637 https://bugzilla.suse.com/1048920 https://bugzilla.suse.com/1049578 https://bugzilla.suse.com/1051787 https://bugzilla.suse.com/1051788 https://bugzilla.suse.com/1052686 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org