SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:2541-1 Rating: important References: #1002573 #1027519 #1032598 #1037413 #1046637 #1047675 #1048920 #1049578 #1051787 #1051788 #1052686 #1056278 #1056281 #1056282 Cross-References: CVE-2017-10664 CVE-2017-10806 CVE-2017-11334 CVE-2017-11434 CVE-2017-12135 CVE-2017-12137 CVE-2017-12855 CVE-2017-14316 CVE-2017-14317 CVE-2017-14319 Affected Products: SUSE Linux Enterprise Server for SAP 12 SUSE Linux Enterprise Server 12-LTSS ______________________________________________________________________________ An update that solves 10 vulnerabilities and has four fixes is now available. Description: This update for xen 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-2017-11334: 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-2017-10806: Stack-based buffer overflow in hw/usb/redirect.c allowed local guest OS users to cause a denial of service via vectors related to logging debug messages (bsc#1047675). - 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, bsc#1052686). - CVE-2017-14316: Missing bound check in function `alloc_heap_pages` for an internal array allowed attackers using crafted hypercalls to execute arbitrary code within Xen (XSA-231, bsc#1056278) - CVE-2017-14317: A race in cxenstored may have cause a double-free allowind for DoS of the xenstored daemon (XSA-233, bsc#1056281). - CVE-2017-14319: An error while handling grant mappings allowed malicious or buggy x86 PV guest to escalate its privileges or crash the hypervisor (XSA-234, bsc#1056282). These non-security issues were fixed: - bsc#1002573: Optimized LVM functions in block-dmmd block-dmmd - bsc#1032598: Prevent removal of NVME devices - bsc#1037413: Support for newer intel cpu's, mwait-idle driver and skylake 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 for SAP 12: zypper in -t patch SUSE-SLE-SAP-12-2017-1576=1 - SUSE Linux Enterprise Server 12-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-2017-1576=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server for SAP 12 (x86_64): xen-4.4.4_22-22.51.2 xen-debugsource-4.4.4_22-22.51.2 xen-doc-html-4.4.4_22-22.51.2 xen-kmp-default-4.4.4_22_k3.12.61_52.89-22.51.2 xen-kmp-default-debuginfo-4.4.4_22_k3.12.61_52.89-22.51.2 xen-libs-32bit-4.4.4_22-22.51.2 xen-libs-4.4.4_22-22.51.2 xen-libs-debuginfo-32bit-4.4.4_22-22.51.2 xen-libs-debuginfo-4.4.4_22-22.51.2 xen-tools-4.4.4_22-22.51.2 xen-tools-debuginfo-4.4.4_22-22.51.2 xen-tools-domU-4.4.4_22-22.51.2 xen-tools-domU-debuginfo-4.4.4_22-22.51.2 - SUSE Linux Enterprise Server 12-LTSS (x86_64): xen-4.4.4_22-22.51.2 xen-debugsource-4.4.4_22-22.51.2 xen-doc-html-4.4.4_22-22.51.2 xen-kmp-default-4.4.4_22_k3.12.61_52.89-22.51.2 xen-kmp-default-debuginfo-4.4.4_22_k3.12.61_52.89-22.51.2 xen-libs-32bit-4.4.4_22-22.51.2 xen-libs-4.4.4_22-22.51.2 xen-libs-debuginfo-32bit-4.4.4_22-22.51.2 xen-libs-debuginfo-4.4.4_22-22.51.2 xen-tools-4.4.4_22-22.51.2 xen-tools-debuginfo-4.4.4_22-22.51.2 xen-tools-domU-4.4.4_22-22.51.2 xen-tools-domU-debuginfo-4.4.4_22-22.51.2 References: https://www.suse.com/security/cve/CVE-2017-10664.html https://www.suse.com/security/cve/CVE-2017-10806.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://www.suse.com/security/cve/CVE-2017-14316.html https://www.suse.com/security/cve/CVE-2017-14317.html https://www.suse.com/security/cve/CVE-2017-14319.html https://bugzilla.suse.com/1002573 https://bugzilla.suse.com/1027519 https://bugzilla.suse.com/1032598 https://bugzilla.suse.com/1037413 https://bugzilla.suse.com/1046637 https://bugzilla.suse.com/1047675 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 https://bugzilla.suse.com/1056278 https://bugzilla.suse.com/1056281 https://bugzilla.suse.com/1056282 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org