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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2642 SUSE Security Update: Security update for xen 19 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: xen Publisher: SUSE Operating System: SUSE Impact/Access: Increased Privileges -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-5526 Reference: ESB-2017.1199 ESB-2017.1022 ESB-2017.0606 Original Bulletin: https://www.suse.com/support/update/announcement/2017/suse-su-20172751-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:2751-1 Rating: important References: #1027519 #1055321 #1059777 #1061076 #1061077 #1061080 #1061081 #1061082 #1061084 #1061086 #1061087 Cross-References: CVE-2017-5526 Affected Products: SUSE Linux Enterprise Software Development Kit 12-SP3 SUSE Linux Enterprise Server 12-SP3 SUSE Linux Enterprise Desktop 12-SP3 ______________________________________________________________________________ An update that solves one vulnerability and has 10 fixes 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) - bsc#1061084: Missing cleanup in the page type system allowed a malicious or buggy PV guest to cause DoS (XSA-242) - bsc#1061086: 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#1061087: 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#1061077 Missing checks in the handling of DMOPs allowed malicious or buggy stub domain kernels or tool stacks otherwise living outside of Domain0 to cause a DoS (XSA-238) - bsc#1061080: 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#1061081: 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#1061082: 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#1061076: 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#1055321: When dealing with the grant map space of add-to-physmap operations, ARM specific code failed to release a lock. This allowed a malicious guest administrator to cause DoS (XSA-235) 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-SP3: zypper in -t patch SUSE-SLE-SDK-12-SP3-2017-1702=1 - SUSE Linux Enterprise Server 12-SP3: zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1702=1 - SUSE Linux Enterprise Desktop 12-SP3: zypper in -t patch SUSE-SLE-DESKTOP-12-SP3-2017-1702=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Software Development Kit 12-SP3 (aarch64 x86_64): xen-debugsource-4.9.0_14-3.18.1 xen-devel-4.9.0_14-3.18.1 - SUSE Linux Enterprise Server 12-SP3 (x86_64): xen-4.9.0_14-3.18.1 xen-debugsource-4.9.0_14-3.18.1 xen-doc-html-4.9.0_14-3.18.1 xen-libs-32bit-4.9.0_14-3.18.1 xen-libs-4.9.0_14-3.18.1 xen-libs-debuginfo-32bit-4.9.0_14-3.18.1 xen-libs-debuginfo-4.9.0_14-3.18.1 xen-tools-4.9.0_14-3.18.1 xen-tools-debuginfo-4.9.0_14-3.18.1 xen-tools-domU-4.9.0_14-3.18.1 xen-tools-domU-debuginfo-4.9.0_14-3.18.1 - SUSE Linux Enterprise Desktop 12-SP3 (x86_64): xen-4.9.0_14-3.18.1 xen-debugsource-4.9.0_14-3.18.1 xen-libs-32bit-4.9.0_14-3.18.1 xen-libs-4.9.0_14-3.18.1 xen-libs-debuginfo-32bit-4.9.0_14-3.18.1 xen-libs-debuginfo-4.9.0_14-3.18.1 References: https://www.suse.com/security/cve/CVE-2017-5526.html https://bugzilla.suse.com/1027519 https://bugzilla.suse.com/1055321 https://bugzilla.suse.com/1059777 https://bugzilla.suse.com/1061076 https://bugzilla.suse.com/1061077 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 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWeganIx+lLeg9Ub1AQiBdQ/+PQAG3XWFkbTlFOz/UYzllhxOWVK+gfyu YpatIf96UcF0lf+Q3rwIL/gZ1+JdZNuuJRSbFxOreT301fPjPw7RVtT0vWaeAHdl mLa4NysHSjaG1P7Br+dV4GTe7KsvTh2Im70W04XpRpiY5yJZ3m12l6hGsSqMsIoC aoEl0HhQW1L8olGRrR7JhFpvdQ+/CW9I13332ngwf4ux7G5PPjX7LHYHI1xXOYh2 Hd4AbiD22W9kx4YLSSMVY7QqpWIAySZB7kOUPf6GuH44NIXqStMhUNQYzzLdFoCc vG3U5yXqY3kZ5g2yMLMlCgCpAWCsNKkN78eo+qAmaDI0LpcSFtZIJe5YbeshznUA PoLoDTk1rEDSN6hJU8w3S9MEL167rbL5tgMK7qxhZFin8Jfke7g1OBIeZxwap/2C C1FB8zAdeuALFuR4/xQ+RWKVnhTE5J+f7+0OWKeRn9T4h2u/whJMz15yaIzE5E1r JaLlRmwSA4kvcF5UGNRxBZ7a7bu/74HaUGgUirx0d5SlTwliRsXlHN48HOuv2d36 YHXwraDFOkx+MQ/Qo6Mqg4TzLf4Bm0D9bcxeZE/M+MQIanpFX7Pr5FcPuBDPxyq1 n7GboWJPR9+KjmlkFimZPEzPfDwH6V/MUGQoeh+rVo/ErXaFqd4BbMFesyDKJOo3 KY8Exa5pdEc= =yrsF -----END PGP SIGNATURE-----