GSD-2022-1005355 ksmbd: fix use-after-free bug in smb2_tree_disconect
A use-after-free vulnerability in the Linux kernel's ksmbd SMB server allows attackers to potentially execute code or cause a denial of service.
- 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-2022-1005355?
GSD-2022-1005355 is an use after free 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: fix use-after-free bug in smb2_tree_disconect
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 02ed2a9b7874e1fd08bbeccfe998df373a978b6f, it was introduced in version v5.15 by commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9. For more details please see the references link.
Which versions are affected by GSD-2022-1005355?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005355?
No fix has been published for GSD-2022-1005355 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-2022-1005355 being exploited?
There is no known exploitation of GSD-2022-1005355 in the wild and no public exploit code.