GSD-2021-1002454 can: sja1000: fix use after free in ems_pcmcia_add_card()
A use-after-free vulnerability in the Linux Kernel SJA1000 CAN driver allows local attackers to potentially execute code or escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1002454?
GSD-2021-1002454 is an use after free vulnerability in Kernel, published on 19 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
can: sja1000: fix use after free in ems_pcmcia_add_card()
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 v5.4.165 by commit 1a295fea90e1acbe80c6d4940f5ff856edcd6bec, it was introduced in version v3.2 by commit fd734c6f25aea4b2b44b045e489aec67b388577e. For more details please see the references link.
Which versions are affected by GSD-2021-1002454?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002454?
No fix has been published for GSD-2021-1002454 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is GSD-2021-1002454 being exploited?
There is no known exploitation of GSD-2021-1002454 in the wild and no public exploit code.