UBUNTU-CVE-2023-46849

Details

Using the --fragment option in certain configuration setups OpenVPN version 2.6.0 to 2.6.6 allows an attacker to trigger a divide by zero behaviour which could cause an application crash, leading to a denial of service.

Affected Packages

openvpn

Ubuntu 20.04 LTS

Fixed in:

2.4.7-1ubuntu2.20.04.4

openvpn

Ubuntu 22.04 LTS

Fixed in:

2.5.5-1ubuntu3.1

References

REPORT

https://community.openvpn.net/openvpn/wiki/CVE-2023-46849

REPORT

https://openvpn.net/security-advisory/access-server-security-update-cve-2023-46849-cve-2023-46850/

REPORT

https://ubuntu.com/security/CVE-2023-46849

ADVISORY

https://ubuntu.com/security/notices/USN-6484-1

REPORT

https://www.cve.org/CVERecord?id=CVE-2023-46849