Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2015.2493 Important: qemu-kvm-rhev security update 25 September 2015 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: qemu-kvm-rhev Publisher: Red Hat Operating System: Red Hat KVM Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2015-5225 Reference: ESB-2015.2406 ESB-2015.2298 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2015-1837.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Important: qemu-kvm-rhev security update Advisory ID: RHSA-2015:1837-01 Product: Red Hat Enterprise Virtualization Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-1837.html Issue date: 2015-09-24 CVE Names: CVE-2015-5225 ===================================================================== 1. Summary: Updated qemu-kvm-rhev packages that fix one security issue are now available for Red Hat Enterprise Virtualization Hypervisor 7. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: RHEV-H and VDSM for 7 Hosts - x86_64 3. Description: KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on AMD64 and Intel 64 systems. The qemu-kvm-rhev package provides the user-space component for running virtual machines using KVM. A heap-based buffer overflow issue was found in the QEMU emulator's VNC display driver. It could occur while refreshing the VNC server's display surface using the vnc_refresh_server_surface() routine. A privileged guest user could use this flaw to corrupt the heap memory and crash the QEMU process instance, or to potentially use it to execute arbitrary code on the host. (CVE-2015-5225) Red Hat would like to thank Mr Qinghao Tang from QIHU 360 Inc. and Mr Zuozhi from Alibaba Inc. for reporting this issue. All qemu-kvm-rhev users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1255896 - CVE-2015-5225 Qemu: ui: vnc: heap memory corruption in vnc_refresh_server_surface 6. Package List: RHEV-H and VDSM for 7 Hosts: Source: qemu-kvm-rhev-2.1.2-23.el7_1.9.src.rpm x86_64: libcacard-devel-rhev-2.1.2-23.el7_1.9.x86_64.rpm libcacard-rhev-2.1.2-23.el7_1.9.x86_64.rpm libcacard-tools-rhev-2.1.2-23.el7_1.9.x86_64.rpm qemu-img-rhev-2.1.2-23.el7_1.9.x86_64.rpm qemu-kvm-common-rhev-2.1.2-23.el7_1.9.x86_64.rpm qemu-kvm-rhev-2.1.2-23.el7_1.9.x86_64.rpm qemu-kvm-rhev-debuginfo-2.1.2-23.el7_1.9.x86_64.rpm qemu-kvm-tools-rhev-2.1.2-23.el7_1.9.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2015-5225 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2015 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFWBCNNXlSAg2UNWIIRAlG1AKCI+jvwX7njt7aTNOw0czBvlUZyeACffovm Hy7/0bYyClLmvnhQLEZmcSM= =9tNi - -----END PGP SIGNATURE----- - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBVgSlf36ZAP0PgtI9AQJGUw/+Ow5ulUweBUbRUZmJ6qSeSWdKvqn39Zeq 7oNvHlidpqfDQpsNR5gxJCLRZxISFdPGwVe/UG+2K0kvE6fdJK+V319mfMJC+Iqb lb24i0VJoJe5QBF6CU6c8ihTBj2BWRR335LMKN42ZaCjflikP0r7ePfDMVq1zglx o5o5R8o8Y6wK1HYSQveXJ2z2ugIiukC6alUuuCIn7HrZbhY5dbDwusO1pDwm5Ksv kDilzdGhrtzojYUApsbFOICwcO571JZ8UI/PfODKx4ElbJTfCbC6h2cYPvFogsNq Sykr0iKNXiHCIgosYKb5MQ+S83nJevg9+++Baf7VfBoj+zKpVRs2BJYAh779tmQ4 RCjzMCIlqrsPVtOxoVga8QSqhlh49Ua8/fdscq1cXdxtlBz6MW/Fk+YG9MvcHper Nz14kXkOI3yZQK7rk1kkLPBJo7klURzkm8e2g5dMdTIasytbNtIHWfEStkBn6wSK grmBjhk9PB+bv05jYrxCj5fb2Z5S3aEZiEWlJSM2ETQbf/4FPhLsYwrGIRsVPUK6 eM8xOnxCd/wEMEe9h7VrTrNWepp/W+jqsxrJXsgJvsVlyeeTZXjuHf/RYB9eRIdK c6Ovm2E+X/SQsQyWdyXULvdOU1HHn3KZGoKYXYsV7u7FUo5374xvso1NvvGz5pBr lEVA8fSkB1o= =mppm -----END PGP SIGNATURE-----