GSD-2022-1003718 ip_gre: test csum_start instead of transport header
A flaw in the Linux kernel GRE tunnel implementation may cause a denial of service due to incorrect checksum validation logic.
- 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-2022-1003718?
GSD-2022-1003718 is a vulnerability in Kernel, published on 28 Jun 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ip_gre: test csum_start instead of transport header
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 v5.4.198 by commit 3d08bc3a5d9b2106f5c8bcf1adb73147824aa006, it was introduced in version v5.4.148 by commit 3d32ce5472bb2ca720bef84089b85f76a705fd1a. For more details please see the references link.
Which versions are affected by GSD-2022-1003718?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1003718?
No fix has been published for GSD-2022-1003718 yet. Limit exposure of the affected software until one is available.
Is GSD-2022-1003718 being exploited?
There is no known exploitation of GSD-2022-1003718 in the wild and no public exploit code.