GSD-2022-1005354 ksmbd: prevent out of bound read for SMB2_WRITE
An out-of-bounds read in the ksmbd SMB2_WRITE handler allows attackers to cause denial of service or disclose sensitive kernel memory.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1005354?
GSD-2022-1005354 is a memory corruption vulnerability in Kernel, published on 16 Sep 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
ksmbd: prevent out of bound read for SMB2_WRITE
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 v5.19.2 by commit 0f1c9908c8e18a98b3d6a80bf391bef8001d7fb7, it was introduced in version v5.15 by commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9. For more details please see the references link.
Which versions are affected by GSD-2022-1005354?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005354?
No fix has been published for GSD-2022-1005354 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-2022-1005354 being exploited?
There is no known exploitation of GSD-2022-1005354 in the wild and no public exploit code.