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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1655 SUSE Security Update: Security update for xen 30 June 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Xen Publisher: SUSE Operating System: SUSE Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2017-9330 CVE-2017-8905 CVE-2017-8309 Reference: ESB-2017.1263 - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for xen ______________________________________________________________________________ Announcement ID: SUSE-SU-2017:1715-1 Rating: important References: #1034845 #1037243 #1042160 #1042863 #1042882 #1042893 #1042915 #1042931 #1042938 Cross-References: CVE-2017-8309 CVE-2017-8905 CVE-2017-9330 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 solves three vulnerabilities and has 6 fixes is now available. Description: This update for xen fixes the following security issues: - blkif responses leaked backend stack data, which allowed unprivileged guest to obtain sensitive information from the host or other guests (XSA-216, bsc#1042863) - Page transfer might have allowed PV guest to elevate privilege (XSA-217, bsc#1042882) - Races in the grant table unmap code allowed for informations leaks and potentially privilege escalation (XSA-218, bsc#1042893) - Insufficient reference counts during shadow emulation allowed a malicious pair of guest to elevate their privileges to the privileges that XEN runs under (XSA-219, bsc#1042915) - Stale P2M mappings due to insufficient error checking allowed malicious guest to leak information or elevate privileges (XSA-222, bsc#1042931) - Grant table operations mishandled reference counts allowing malicious guests to escape (XSA-224, bsc#1042938) - CVE-2017-9330: USB OHCI Emulation in qemu allowed local guest OS users to cause a denial of service (infinite loop) by leveraging an incorrect return value (bsc#1042160) - CVE-2017-8309: Memory leak in the audio/audio.c allowed remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture (bsc#1037243) - CVE-2017-8905: Xen a failsafe callback, which might have allowed PV guest OS users to execute arbitrary code on the host OS (XSA-215, bsc#1034845). 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-13181=1 - SUSE Linux Enterprise Point of Sale 11-SP3: zypper in -t patch sleposp3-xen-13181=1 - SUSE Linux Enterprise Debuginfo 11-SP3: zypper in -t patch dbgsp3-xen-13181=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_0.47.102-44.1 xen-libs-4.2.5_21-44.1 xen-tools-domU-4.2.5_21-44.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64): xen-4.2.5_21-44.1 xen-doc-html-4.2.5_21-44.1 xen-doc-pdf-4.2.5_21-44.1 xen-libs-32bit-4.2.5_21-44.1 xen-tools-4.2.5_21-44.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586): xen-kmp-pae-4.2.5_21_3.0.101_0.47.102-44.1 - SUSE Linux Enterprise Point of Sale 11-SP3 (i586): xen-kmp-default-4.2.5_21_3.0.101_0.47.102-44.1 xen-kmp-pae-4.2.5_21_3.0.101_0.47.102-44.1 xen-libs-4.2.5_21-44.1 xen-tools-domU-4.2.5_21-44.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64): xen-debuginfo-4.2.5_21-44.1 xen-debugsource-4.2.5_21-44.1 References: https://www.suse.com/security/cve/CVE-2017-8309.html https://www.suse.com/security/cve/CVE-2017-8905.html https://www.suse.com/security/cve/CVE-2017-9330.html https://bugzilla.suse.com/1034845 https://bugzilla.suse.com/1037243 https://bugzilla.suse.com/1042160 https://bugzilla.suse.com/1042863 https://bugzilla.suse.com/1042882 https://bugzilla.suse.com/1042893 https://bugzilla.suse.com/1042915 https://bugzilla.suse.com/1042931 https://bugzilla.suse.com/1042938 - -- To unsubscribe, e-mail: opensuse-security-announce+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-security-announce+help@opensuse.org - --------------------------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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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). 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