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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0275 Open vSwitch vulnerabilities 31 January 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openvswitch Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-17206 CVE-2018-17205 CVE-2018-17204 Reference: ESB-2019.0147 ESB-2018.3882 ESB-2018.3464 Original Bulletin: http://www.ubuntu.com/usn/usn-3873-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3873-1: Open vSwitch vulnerabilities 30 January 2019 openvswitch vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.04 LTS Ubuntu 16.04 LTS Summary Several security issues were fixed in Open vSwitch. Software Description openvswitch - Ethernet virtual switch Details It was discovered that Open vSwitch incorrectly decoded certain packets. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2018-17204) It was discovered that Open vSwitch incorrectly handled processing certain flows. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-17205) It was discovered that Open vSwitch incorrectly handled BUNDLE action decoding. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2018-17206) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS openvswitch-common - 2.9.2-0ubuntu0.18.04.3 Ubuntu 16.04 LTS openvswitch-common - 2.5.5-0ubuntu0.16.04.2 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2018-17204 CVE-2018-17205 CVE-2018-17206 - --------------------------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. 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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 iQIVAwUBXFJrQ2aOgq3Tt24GAQgBbg/9FcZ2/C8A9z+ZrJGZv6k4Wfs56DS6Ttur Xp1ihRrsQQAKzsSo67T/ASHhorpupAf0eJzuc3zO9Nh4x1qCDWl4r/D9ChIV0KeW N/Jlv1YmWh+lwkp5kUXQZgx6tV67OwFjzZi8lrtKldcJQvmLDogYjRSq/cTHqP+8 V26vJ5LvgeFBu3LiaKtzAm6mX2nxZTU5vu8DvHjlM7GGxPuxg2Zb4Ka1D45HcC6O wm/q1+q40KUf/77zKeeJ0uu0Ji8N/Vdcbprt6z0Y/N89lfMUFTt4E0ntduohNeOU R5R38L3ie1hbMc2ZVCH2gR1G7wz2c5J/gaMvcXHct7nc0aNV1yS1sc+kLGO2sZXU VP9dROIRkxe9MEtmFGlahD0o4pe/mTa8XhgUvGPstvB83qNQ06N7twyxKMVqLZT2 Zr2f2wa65uIV0T0HD9JDn/XTXMd0ph61HaX3aKM7Jfwuupt/yqgkSPSBZ650jGQO PCdyCejgqz6s2EJ+arui3+2CP1Y3WTYy8WGLLPRTQC2pGPWdT66/61nUFrBK0JGg M/wwTEFvNYg4BxErzWgsizI2WpSNf9SFMZ1FmE1Xa1VEBG6c3R3Y6tAygg1q12ab HWwvAdViZi3kgJBT28slfcFVzbJGOrl2Pw4Hh3vbQtvfReVWN5XB9VfCchjObmAU tpsvk40M3Ow= =WKS+ -----END PGP SIGNATURE-----