GSD-2022-1005678 ksmbd: fix use-after-free bug in smb2_tree_disconect
A use-after-free vulnerability in the ksmbd SMB server allows attackers to potentially execute code or escalate privileges.
- 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-2022-1005678?
GSD-2022-1005678 is an use after free vulnerability in Kernel, published on 17 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 v5.15.61 by commit a54c509c32adba9d136f2b9d6a075e8cae1b6d27, it was introduced in version v5.15 by commit e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9. For more details please see the references link.
Which versions are affected by GSD-2022-1005678?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1005678?
No fix has been published for GSD-2022-1005678 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-2022-1005678 being exploited?
There is no known exploitation of GSD-2022-1005678 in the wild and no public exploit code.