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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1833 USN-4371-1: libvirt vulnerabilities 22 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libvirt Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-12430 CVE-2020-10703 Reference: ESB-2020.1815 ESB-2020.1733.2 Original Bulletin: https://usn.ubuntu.com/4371-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4371-1: libvirt vulnerabilities 21 May 2020 libvirt vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.10 o Ubuntu 18.04 LTS Summary Several security issues were fixed in libvirt. Software Description o libvirt - Libvirt virtualization toolkit Details It was discovered that libvirt incorrectly handled an active pool without a target path. A remote attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service. (CVE-2020-10703) It was discovered that libvirt incorrectly handled memory when retrieving certain domain statistics. A remote attacker could possibly use this issue to cause libvirt to consume resources, resulting in a denial of service. This issue only affected Ubuntu 19.10. (CVE-2020-12430) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10 libvirt-clients - 5.4.0-0ubuntu5.4 libvirt-daemon - 5.4.0-0ubuntu5.4 libvirt0 - 5.4.0-0ubuntu5.4 Ubuntu 18.04 LTS libvirt-clients - 4.0.0-1ubuntu8.17 libvirt-daemon - 4.0.0-1ubuntu8.17 libvirt0 - 4.0.0-1ubuntu8.17 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . After a standard system update you need to reboot your computer to make all the necessary changes. References o CVE-2020-10703 o CVE-2020-12430 - --------------------------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 iQIVAwUBXsdW1eNLKJtyKPYoAQgw0Q/+PPvCwr0gn6EXLJyeXii5vCEorJRXfQ3c YqEdYFlYcyY6bzEvbOBOQ8n0Wf0CyW2A6snTFUNl+W8zVsjsnCGBsIyJlv4MMFwj xP+dIRQfTqV4YfgDYLMZgYzK6IKjV4OSyYgGdHzWy8t/+yqvkpzWRD69X0hpQGO+ XqIDq3sE0NiTmhoR2/hFqJca7YE+6udJrlxR3qvpt8f4tX4W5FB5o6Am0dLJJHqP 5kEcQXsnfww8ZUy8ZrLFkeakCmtwm9wH1HpeUzfGB+6ojS7u8YiKZr4hvu6JNjvT Umn//vIkYlsnZRdrTXwydT20JhzRppJ/vi228pHKFGnLhrfIF9TJhE5uDUp4ZRn8 pCiTRh6W0k98wlNGU4JGr+g+4ztBuGJilfxOlUsaMx7u40FnJMZPKNj2ynO6gaG/ Tt0+a/ugXVb4G30kj5q3kIRFtZ/kHieJuPGFPymgdsYfvz4tczwrotVL1CNeWmL/ 7FXbfh5e267Li8fDBZ8BDcYzIufhTP5IxowSd64tTSzVqiLLPUhHj2mTWyPjy1YI JGUJK75IVU1vxqhfL7roOGf/MK9pVHmLOXS0uJNNS3UT2y71HOg6ioliUlgd5siF o+1l3fkrU3VZTXP4QOXdOiUAxbzXkSPtJaUsKaerfsi5IBe5HSyPPpi3YZWUp9Pj QUnEr97FykE= =gipG -----END PGP SIGNATURE-----