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Ubuntu Security Notice USN-4691-1

Ubuntu Security Notice USN-4691-1
Posted Jan 13, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4691-1 - Jonas Rudloff discovered that Open vSwitch incorrectly handled certain malformed LLDP packets. A remote attacker could use this issue to cause Open vSwitch to crash, resulting in a denial of service, or possibly execute arbitrary code.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2015-8011
MD5 | 622199ebe49995537dcf295a4a531f9d

Ubuntu Security Notice USN-4691-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4691-1
January 13, 2021

openvswitch vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in Open vSwitch.

Software Description:
- openvswitch: Ethernet virtual switch

Details:

Jonas Rudloff discovered that Open vSwitch incorrectly handled certain
malformed LLDP packets. A remote attacker could use this issue to cause
Open vSwitch to crash, resulting in a denial of service, or possibly
execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 20.10:
openvswitch-common 2.13.1-0ubuntu1.2

Ubuntu 20.04 LTS:
openvswitch-common 2.13.1-0ubuntu0.20.04.3

Ubuntu 18.04 LTS:
openvswitch-common 2.9.7-0ubuntu0.18.04.2

Ubuntu 16.04 LTS:
openvswitch-common 2.5.9-0ubuntu0.16.04.2

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4691-1
CVE-2015-8011, CVE-2020-27827

Package Information:
https://launchpad.net/ubuntu/+source/openvswitch/2.13.1-0ubuntu1.2
https://launchpad.net/ubuntu/+source/openvswitch/2.13.1-0ubuntu0.20.04.3
https://launchpad.net/ubuntu/+source/openvswitch/2.9.7-0ubuntu0.18.04.2
https://launchpad.net/ubuntu/+source/openvswitch/2.5.9-0ubuntu0.16.04.2
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