GSD-2022-1001549 ptp: unregister virtual clocks when unregistering physical clock.
A use-after-free vulnerability in the Linux kernel PTP subsystem allows local attackers to cause denial of service or potentially escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2022-1001549?
GSD-2022-1001549 is an use after free 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
ptp: unregister virtual clocks when unregistering physical clock.
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 v5.16.19 by commit 9c796a57cbb5daf124a665689f0b2bc9262e0ced, it was introduced in version v5.14 by commit 73f37068d540eba5f93ba3a0019bf479d35ebd76. For more details please see the references link.
Which versions are affected by GSD-2022-1001549?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1001549?
No fix has been published for GSD-2022-1001549 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-2022-1001549 being exploited?
There is no known exploitation of GSD-2022-1001549 in the wild and no public exploit code.