USN-6484-1: OpenVPN vulnerabilities

Releases

• Ubuntu 23.10
• Ubuntu 23.04

Packages

• openvpn - virtual private network software

Details

It was discovered that OpenVPN incorrectly handled the --fragment option
in certain configurations. A remote attacker could possibly use this issue
to cause OpenVPN to crash, resulting in a denial of service.
(CVE-2023-46849)

It was discovered that OpenVPN incorrectly handled certain memory
operations. A remote attacker could use this issue to cause OpenVPN to
crash, obtain sensitive information, or possibly execute arbitrary code.
(CVE-2023-46850)

Update instructions

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

Ubuntu 23.10

• openvpn - 2.6.5-0ubuntu1.1

Ubuntu 23.04

• openvpn - 2.6.1-1ubuntu1.1

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

References

• CVE-2023-46850
• CVE-2023-46849