GSD-2022-1001761 ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()
An out-of-bounds read in the UBIFS filesystem can cause a kernel crash or leak memory, requiring a local attacker to mount a crafted image.
- 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-2022-1001761?
GSD-2022-1001761 is a memory corruption vulnerability in Kernel, published on 24 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()
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 v5.15.33 by commit a7054aaf1909cf40489c0ec1b728fdcf79c751a6, it was introduced in version v2.6.27 by commit 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d. For more details please see the references link.
Which versions are affected by GSD-2022-1001761?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001761?
No fix has been published for GSD-2022-1001761 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2022-1001761 being exploited?
There is no known exploitation of GSD-2022-1001761 in the wild and no public exploit code.