USN-3450-1: Open vSwitch vulnerabilities
Ubuntu Security Notice USN-3450-1
11th October, 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 version:
- Ubuntu 17.04:
-
openvswitch-common
2.6.1-0ubuntu5.1
- Ubuntu 16.04 LTS:
-
openvswitch-common
2.5.2-0ubuntu0.16.04.2
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
Source: USN-3450-1: Open vSwitch vulnerabilities
