SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:2856-1 Rating: important References: #1027519 #1059777 #1061076 #1061080 #1061081 #1061082 #1061084 #1061086 #1061087 Cross-References: CVE-2017-15588 CVE-2017-15589 CVE-2017-15590 CVE-2017-15592 CVE-2017-15593 CVE-2017-15594 CVE-2017-15595 CVE-2017-5526 Affected Products: SUSE Linux Enterprise Server 12-LTSS ______________________________________________________________________________ An update that solves 8 vulnerabilities and has one errata is now available. Description: This update for xen fixes several issues: These security issues were fixed: - CVE-2017-5526: The ES1370 audio device emulation support was vulnerable to a memory leakage issue allowing a privileged user inside the guest to cause a DoS and/or potentially crash the Qemu process on the host (bsc#1059777) - CVE-2017-15593: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242 bsc#1061084) - CVE-2017-15592: A problem in the shadow pagetable code allowed a malicious or buggy HVM guest to cause DoS or cause hypervisor memory corruption potentially allowing the guest to escalate its privilege (XSA-243 bsc#1061086) - CVE-2017-15594: Problematic handling of the selector fields in the Interrupt Descriptor Table (IDT) allowed a malicious or buggy x86 PV guest to escalate its privileges or cause DoS (XSA-244 bsc#1061087) - CVE-2017-15589: Intercepted I/O write operations with less than a full machine word's worth of data were not properly handled, which allowed a malicious unprivileged x86 HVM guest to obtain sensitive information from the host or other guests (XSA-239 bsc#1061080) - CVE-2017-15595: In certain configurations of linear page tables a stack overflow might have occured that allowed a malicious or buggy PV guest to cause DoS and potentially privilege escalation and information leaks (XSA-240 bsc#1061081) - CVE-2017-15588: Under certain conditions x86 PV guests could have caused the hypervisor to miss a necessary TLB flush for a page. This allowed a malicious x86 PV guest to access all of system memory, allowing for privilege escalation, DoS, and information leaks (XSA-241 bsc#1061082) - CVE-2017-15590: Multiple issues existed with the setup of PCI MSI interrupts that allowed a malicious or buggy guest to cause DoS and potentially privilege escalation and information leaks (XSA-237 bsc#1061076) 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 12-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-2017-1778=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server 12-LTSS (x86_64): xen-4.4.4_24-22.54.1 xen-debugsource-4.4.4_24-22.54.1 xen-doc-html-4.4.4_24-22.54.1 xen-kmp-default-4.4.4_24_k3.12.61_52.92-22.54.1 xen-kmp-default-debuginfo-4.4.4_24_k3.12.61_52.92-22.54.1 xen-libs-32bit-4.4.4_24-22.54.1 xen-libs-4.4.4_24-22.54.1 xen-libs-debuginfo-32bit-4.4.4_24-22.54.1 xen-libs-debuginfo-4.4.4_24-22.54.1 xen-tools-4.4.4_24-22.54.1 xen-tools-debuginfo-4.4.4_24-22.54.1 xen-tools-domU-4.4.4_24-22.54.1 xen-tools-domU-debuginfo-4.4.4_24-22.54.1 References: https://www.suse.com/security/cve/CVE-2017-15588.html https://www.suse.com/security/cve/CVE-2017-15589.html https://www.suse.com/security/cve/CVE-2017-15590.html https://www.suse.com/security/cve/CVE-2017-15592.html https://www.suse.com/security/cve/CVE-2017-15593.html https://www.suse.com/security/cve/CVE-2017-15594.html https://www.suse.com/security/cve/CVE-2017-15595.html https://www.suse.com/security/cve/CVE-2017-5526.html https://bugzilla.suse.com/1027519 https://bugzilla.suse.com/1059777 https://bugzilla.suse.com/1061076 https://bugzilla.suse.com/1061080 https://bugzilla.suse.com/1061081 https://bugzilla.suse.com/1061082 https://bugzilla.suse.com/1061084 https://bugzilla.suse.com/1061086 https://bugzilla.suse.com/1061087 -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org