GSD-2023-1002039 can: j1939: fix errant WARN_ON_ONCE in j1939_session_deactivate
A local attacker can trigger a kernel warning in the J1939 CAN protocol stack, potentially causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2023-1002039?
GSD-2023-1002039 is a denial of service vulnerability in Kernel, published on 13 Feb 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
can: j1939: fix errant WARN_ON_ONCE in j1939_session_deactivate
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.93 by commit 9ab896775f98ff54b68512f345eed178bf961084, it was introduced in version v5.14 by commit 0c71437dd50dd687c15d8ca80b3b68f10bb21d63. For more details please see the references link.
Which versions are affected by GSD-2023-1002039?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1002039?
No fix has been published for GSD-2023-1002039 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2023-1002039 being exploited?
There is no known exploitation of GSD-2023-1002039 in the wild and no public exploit code.