GSD-2021-1001617 binder: make sure fd closes complete
A use-after-free vulnerability in the Linux kernel binder driver allows local attackers to potentially escalate privileges or cause a system crash.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001617?
GSD-2021-1001617 is an use after free vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
binder: make sure fd closes complete
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 v5.4.150 by commit aa2c274c279ff365a06a4cba263f04965895166e, it was introduced in version v5.0 by commit 80cd795630d6526ba729a089a435bf74a57af927. For more details please see the references link.
Which versions are affected by GSD-2021-1001617?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001617?
No fix has been published for GSD-2021-1001617 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-2021-1001617 being exploited?
There is no known exploitation of GSD-2021-1001617 in the wild and no public exploit code.