GSD-2021-1000917 udp: fix race between close() and udp_abort()
A race condition between close() and udp_abort() in the Linux kernel UDP implementation 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-2021-1000917?
GSD-2021-1000917 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 v5.4.128 by commit 5a88477c1c85e4baa51e91f2d40f2166235daa56, it was introduced in version v4.9 by commit 5d77dca82839ef016a93ad7acd7058b14d967752. For more details please see the references link.
Which versions are affected by GSD-2021-1000917?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000917?
No fix has been published for GSD-2021-1000917 yet. Limit exposure of the affected software until one is available.
Is GSD-2021-1000917 being exploited?
There is no known exploitation of GSD-2021-1000917 in the wild and no public exploit code.