========================================================================== Ubuntu Security Notice USN-3450-1 October 11, 2017
openvswitch vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 17.04 - Ubuntu 16.04 LTS Summary: Several security issues were fixed in Open vSwitch. Software Description: - openvswitch: Ethernet virtual switch Details: Bhargava Shastry discovered that Open vSwitch incorrectly handled certain OFP messages. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2017-9214) It was discovered that Open vSwitch incorrectly handled certain OpenFlow role messages. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2017-9263) It was discovered that Open vSwitch incorrectly handled certain malformed packets. 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 17.04. (CVE-2017-9264) It was discovered that Open vSwitch incorrectly handled group mod OpenFlow messages. A remote attacker could possibly use this issue to cause Open vSwitch to crash, resulting in a denial of service. (CVE-2017-9265) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 17.04: openvswitch-common 2.6.1-0ubuntu5.1 Ubuntu 16.04 LTS: openvswitch-common 2.5.2-0ubuntu0.16.04.2 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3450-1 CVE-2017-9214, CVE-2017-9263, CVE-2017-9264, CVE-2017-9265 Package Information: https://launchpad.net/ubuntu/+source/openvswitch/2.6.1-0ubuntu5.1 https://launchpad.net/ubuntu/+source/openvswitch/2.5.2-0ubuntu0.16.04.2
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