GSD-2022-1001247 udmabuf: validate ubuf->pagecount
Missing validation of pagecount in udmabuf allows local attackers to potentially escalate privileges or execute code.
- 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-2022-1001247?
GSD-2022-1001247 is a missing authorization 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
udmabuf: validate ubuf->pagecount
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 v5.17.2 by commit 9e9b4a269f84d3230f2af84ff42322db676440d9, it was introduced in version v4.20 by commit fbb0de795078190a9834b3409e4b009cfb18a6d4. For more details please see the references link.
Which versions are affected by GSD-2022-1001247?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001247?
No fix has been published for GSD-2022-1001247 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is GSD-2022-1001247 being exploited?
There is no known exploitation of GSD-2022-1001247 in the wild and no public exploit code.