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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2714 SUSE Security Update: Security update for xen 27 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: xen Publisher: SUSE Operating System: SUSE Impact/Access: Denial of Service -- Existing Account Increased Privileges -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-15595 CVE-2017-15594 CVE-2017-15593 CVE-2017-15592 CVE-2017-15590 CVE-2017-15589 CVE-2017-15588 CVE-2017-5526 Reference: ESB-2017.2665 ESB-2017.2642 ESB-2017.1199 ESB-2017.1022 ESB-2017.0606 Original Bulletin: https://www.suse.com/support/update/announcement/2017/suse-su-20172856-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- 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 - --------------------------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 iQIVAwUBWfKCrox+lLeg9Ub1AQi70w//fcVXmpyYZbea5gkmoYpjnR8XTsHiO66O qqQ/B3mcZayiaJQC3sVCEZbvsfOl0JkBFkEiSMYXG6cqJnz43d1hdCcahuMtLx4w ywDMY7ml4Z2o+HOmUZzi7ES3hsla/q3An79oaII2YbmxSHqs17zJqkKMb333f117 bBrH+eU/h8Bwgcrorp96qDC4Ch08Fh46GvuuE+scolu6JLt08nV2rXHCrroS3GYR 7lIoGnI4vW6ZNOq/bzz/ZgnyuYbggCYbZehmQS7enNLv1UsqVrfuRe9JJyYibgYJ 37xWoTiIygDH1OstJgs2d2N2gkRfFpeNt+41nUkylgO6iFYVBOwwdwGD3sJCC3k8 B+nqitc25iPqkb0drzj/yC5WfT0hHLDpS18iMTBEOUB63vKGFmR9gsU6+2VBg0rb 6KWZZLeFgojd+1zgwIXxdf51Gd5JfJqMyLUAEtPbMfJTmUNiGlqd5zCMUQyLWt4L Q5Co3YMcZMCG5Gugf67kCyTMY7LZjU1kJeVOjLo2QoZ/zomydhIBtNxXq1FGZQRZ gpMuluGm561Q4AIF0MVWotOsiLSu/UM/wBY7oxelIWvpXdneCbjZ3Yqkxq0uk1dR Ssv4GhrKe+oi4y1klWFehVbDwTXKrYHXIiCqMu1vaRRG4ldg+Y0RTw6xkH+RnlNm TupPTCjFjew= =/AMB -----END PGP SIGNATURE-----