GSD-2023-1000819 xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()
A local attacker can trigger a kernel warning in the Xen privcmd driver, potentially causing a denial of service.
- 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-2023-1000819?
GSD-2023-1000819 is a denial of service vulnerability in Kernel, published on 17 Jan 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()
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 v6.0.16 by commit e0c5f1058ed96f2b7487560c4c4cbd768d13d065, it was introduced in version v4.18 by commit 3ad0876554cafa368f574d4d408468510543e9ff. For more details please see the references link.
Which versions are affected by GSD-2023-1000819?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2023-1000819?
No fix has been published for GSD-2023-1000819 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2023-1000819 being exploited?
There is no known exploitation of GSD-2023-1000819 in the wild and no public exploit code.