USN-7396-1: OVN vulnerability

Releases

• Ubuntu 24.10
• Ubuntu 24.04 LTS
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• ovn - system to support virtual network abstraction

Details

Marius Berntsberg, Trygve Vea, Tore Anderson, Rodolfo Alonso, Jay Faulkner,
and Brian Haley discovered that OVN incorrectly handled certain crafted UDP
packets. A remote attacker could possibly use this issue to bypass egress
ACL rules.

Update instructions

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

Ubuntu 24.10

• ovn-central - 24.09.0-1ubuntu0.1
• ovn-common - 24.09.0-1ubuntu0.1
• ovn-docker - 24.09.0-1ubuntu0.1
• ovn-host - 24.09.0-1ubuntu0.1
• ovn-ic - 24.09.0-1ubuntu0.1

Ubuntu 24.04

• ovn-central - 24.03.2-0ubuntu0.24.04.2
• ovn-common - 24.03.2-0ubuntu0.24.04.2
• ovn-docker - 24.03.2-0ubuntu0.24.04.2
• ovn-host - 24.03.2-0ubuntu0.24.04.2
• ovn-ic - 24.03.2-0ubuntu0.24.04.2

Ubuntu 22.04

• ovn-central - 22.03.3-0ubuntu0.22.04.5
• ovn-common - 22.03.3-0ubuntu0.22.04.5
• ovn-docker - 22.03.3-0ubuntu0.22.04.5
• ovn-host - 22.03.3-0ubuntu0.22.04.5
• ovn-ic - 22.03.3-0ubuntu0.22.04.5

Ubuntu 20.04

• ovn-central - 20.03.2-0ubuntu0.20.04.6
• ovn-common - 20.03.2-0ubuntu0.20.04.6
• ovn-docker - 20.03.2-0ubuntu0.20.04.6
• ovn-host - 20.03.2-0ubuntu0.20.04.6
• ovn-ic - 20.03.2-0ubuntu0.20.04.6

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

References

• CVE-2025-0650