GSD-2021-1000979 udp: fix race between close() and udp_abort()
A race condition in the Linux kernel UDP subsystem between close and abort operations can lead to a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000979?
GSD-2021-1000979 is a vulnerability in Kernel, published on 30 Jun 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
udp: fix race between close() and udp_abort()
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 v5.10.46 by commit 8729ec8a2238152a4afc212a331a6cd2c61aeeac, it was introduced in version v4.9 by commit 5d77dca82839ef016a93ad7acd7058b14d967752. For more details please see the references link.
Which versions are affected by GSD-2021-1000979?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000979?
No fix has been published for GSD-2021-1000979 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000979 being exploited?
There is no known exploitation of GSD-2021-1000979 in the wild and no public exploit code.