GSD-2021-1002490 tcp: fix page frag corruption on page fault
A memory corruption flaw in the Linux kernel TCP stack allows remote attackers to cause denial of service or potentially execute code via crafted packets.
- 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-2021-1002490?
GSD-2021-1002490 is a memory corruption vulnerability in Kernel, published on 19 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
tcp: fix page frag corruption on page fault
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 v5.10.84 by commit c6f340a331fb72e5ac23a083de9c780e132ca3ae, it was introduced in version v3.7 by commit 5640f7685831e088fe6c2e1f863a6805962f8e81. For more details please see the references link.
Which versions are affected by GSD-2021-1002490?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002490?
No fix has been published for GSD-2021-1002490 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-2021-1002490 being exploited?
There is no known exploitation of GSD-2021-1002490 in the wild and no public exploit code.