GSD-2021-1000977 net: ipv4: fix memory leak in netlbl_cipsov4_add_std
A memory leak in the Linux kernel's CIPSO IPv4 handling allows local attackers to cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1000977?
GSD-2021-1000977 is a memory corruption vulnerability in Kernel, published on 30 Jun 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
net: ipv4: fix memory leak in netlbl_cipsov4_add_std
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 deeeb65c6ee404f2d1fb80b38b2730645c0f4663, it was introduced in version v2.6.19 by commit 96cb8e3313c7a12e026c1ed510522ae6f6023875. For more details please see the references link.
Which versions are affected by GSD-2021-1000977?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1000977?
No fix has been published for GSD-2021-1000977 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-2021-1000977 being exploited?
There is no known exploitation of GSD-2021-1000977 in the wild and no public exploit code.