USN-3873-1: Open vSwitch vulnerabilities
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.
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