CVE-2024-28882 Denial of service in OpenVPN
An authenticated client can extend session validity by sending multiple exit notifications, potentially causing resource exhaustion and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-28882?
CVE-2024-28882 is a medium-severity denial of service vulnerability in OpenVPN, published on 8 Jul 2024. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OpenVPN from 2.6.0 through 2.6.10 in a server role accepts multiple exit notifications from authenticated clients which will extend the validity of a closing session
Weakness: CWE-772
Which versions are affected by CVE-2024-28882?
It affects 1 product.
Linux distribution packages (5)
openvpn SUSE:Linux Enterprise Module for Basesystem 15 SP6 | All versions | 2.6.8-150600.3.3.1 |
openvpn SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.3.8-16.32.1 |
openvpn SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 2.3.8-16.32.1 |
openvpn openSUSE:Leap 15.6 | All versions | 2.6.8-150600.3.3.1 |
openvpn openSUSE:Tumbleweed | All versions | 2.6.10-2.1 |
Products include Openvpn Openvpn.
How do I fix CVE-2024-28882?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-28882 being exploited?
There is no known exploitation of CVE-2024-28882 in the wild and no public exploit code.
Other vulnerabilities in OpenVPN
Sources
Also known as ALPINE-CVE-2024-28882, DEBIAN-CVE-2024-28882, GHSA-v34q-j8xh-hjgx, OESA-2024-1840, SUSE-SU-2024:3502-1, SUSE-SU-2024:3532-1 and 2 more.