GSD-2023-1001230 ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
A use-after-free vulnerability in the Linux Kernel ALSA PCM subsystem allows local attackers to potentially escalate privileges or execute code.
- 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-2023-1001230?
GSD-2023-1001230 is an use after free vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF
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 v5.10.163 by commit df02234e6b87d2a9a82acd3198e44bdeff8488c6. For more details please see the references link.
Which versions are affected by GSD-2023-1001230?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1001230?
No fix has been published for GSD-2023-1001230 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-2023-1001230 being exploited?
There is no known exploitation of GSD-2023-1001230 in the wild and no public exploit code.