1. Ubuntu Security Notices
  2. USN-6484-1

USN-6484-1: OpenVPN vulnerabilities

Publication date

16 November 2023

Overview

Several security issues were fixed in OpenVPN.

Releases

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)

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

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
23.10 mantic openvpn –  2.6.5-0ubuntu1.1
23.04 lunar openvpn –  2.6.1-1ubuntu1.1

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References

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