GSD-2022-1002939 ip_gre: test csum_start instead of transport header
A flaw in the Linux Kernel GRE tunnel implementation allows attackers to cause memory corruption, potentially leading to denial of service or code execution.
- 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-2022-1002939?
GSD-2022-1002939 is a memory corruption 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 v5.17.15 by commit 0c92d813c7c9ca2212ecd879232e7d87362fce98, it was introduced in version v5.15 by commit 8a0ed250f911da31a2aef52101bc707846a800ff. For more details please see the references link.
Which versions are affected by GSD-2022-1002939?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1002939?
No fix has been published for GSD-2022-1002939 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is GSD-2022-1002939 being exploited?
There is no known exploitation of GSD-2022-1002939 in the wild and no public exploit code.