GSD-2021-1000982 mptcp: Fix out of bounds when parsing TCP options
An out-of-bounds memory access in the Linux Kernel MPTCP TCP option parser allows remote attackers to cause denial of service or potentially execute code.
- 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-2021-1000982?
GSD-2021-1000982 is a memory corruption 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
mptcp: Fix out of bounds when parsing TCP options
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 73eeba71dc9932970befa009e68272a3d5ec4a58, it was introduced in version v5.6 by commit cec37a6e41aae7bf3df9a3da783380a4d9325fd8. For more details please see the references link.
Which versions are affected by GSD-2021-1000982?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000982?
No fix has been published for GSD-2021-1000982 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-2021-1000982 being exploited?
There is no known exploitation of GSD-2021-1000982 in the wild and no public exploit code.