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Sicherheit: Denial of Service in Open vSwitch
Aktuelle Meldungen Distributionen
Name: Denial of Service in Open vSwitch
ID: USN-4729-1
Distribution: Ubuntu
Plattformen: Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 20.10
Datum: Mi, 10. Februar 2021, 20:58
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35498
Applikationen: Open vSwitch

Originalnachricht

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From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
<ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <eac0d286-0430-5dc4-6d26-6d3d40490d98@canonical.com>
Subject: [USN-4729-1] Open vSwitch vulnerability

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==========================================================================
Ubuntu Security Notice USN-4729-1
February 10, 2021

openvswitch vulnerability
==========================================================================

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:

Open vSwitch could be made to crash or perform unexpectedly if it received
specially crafted network traffic.

Software Description:
- openvswitch: Ethernet virtual switch

Details:

Joakim Hindersson discovered that Open vSwitch incorrectly parsed certain
network packets. A remote attacker could use this issue to cause a denial
of service, or possibly alter packet classification.

Update instructions:

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

Ubuntu 20.10:
openvswitch-common 2.13.1-0ubuntu1.3

Ubuntu 20.04 LTS:
openvswitch-common 2.13.1-0ubuntu0.20.04.4

Ubuntu 18.04 LTS:
openvswitch-common 2.9.8-0ubuntu0.18.04.2

Ubuntu 16.04 LTS:
openvswitch-common 2.5.9-0ubuntu0.16.04.3

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

References:
https://usn.ubuntu.com/4729-1
CVE-2020-35498

Package Information:
https://launchpad.net/ubuntu/+source/openvswitch/2.13.1-0ubuntu1.3
https://launchpad.net/ubuntu/+source/openvswitch/2.13.1-0ubuntu0.20.04.4
https://launchpad.net/ubuntu/+source/openvswitch/2.9.8-0ubuntu0.18.04.2
https://launchpad.net/ubuntu/+source/openvswitch/2.5.9-0ubuntu0.16.04.3


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