GSD-2022-1000877 xen/netfront: destroy queues before real_num_tx_queues is zeroed
A use-after-free vulnerability in the Linux kernel's Xen netfront driver can lead to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1000877?
GSD-2022-1000877 is an use after free vulnerability in Kernel, published on 18 Mar 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
xen/netfront: destroy queues before real_num_tx_queues is zeroed
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 v5.4.183 by commit b40c912624775a21da32d1105e158db5f6d0554a, it was introduced in version v5.4.174 by commit a5d8e6189b134f5db61be5cd59cf5a74bb01edc7. For more details please see the references link.
Which versions are affected by GSD-2022-1000877?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000877?
No fix has been published for GSD-2022-1000877 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-2022-1000877 being exploited?
There is no known exploitation of GSD-2022-1000877 in the wild and no public exploit code.