GSD-2022-1000977 cifs: potential buffer overflow in handling symlinks
A buffer overflow in the Linux Kernel CIFS symlink handling allows local attackers to potentially execute code or escalate privileges.
- 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-2022-1000977?
GSD-2022-1000977 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
cifs: potential buffer overflow in handling symlinks
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 v5.17.4 by commit 515e7ba11ef043d6febe69389949c8ef5f25e9d0, it was introduced in version v2.6.37 by commit c69c1b6eaea1b3e1eecf7ad2fba0208ac4a11131. For more details please see the references link.
Which versions are affected by GSD-2022-1000977?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000977?
No fix has been published for GSD-2022-1000977 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-2022-1000977 being exploited?
There is no known exploitation of GSD-2022-1000977 in the wild and no public exploit code.