GSD-2021-1002556 ipv6: fix memory leak in fib6_rule_suppress
A memory leak in the Linux kernel IPv6 routing code allows remote attackers to cause a denial of service.
- 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-2021-1002556?
GSD-2021-1002556 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
ipv6: fix memory leak in fib6_rule_suppress
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 v5.15.7 by commit 8ef8a76a340ebdb2c2eea3f6fb0ebbed09a16383, it was introduced in version v5.4 by commit ca7a03c4175366a92cee0ccc4fec0038c3266e26. For more details please see the references link.
Which versions are affected by GSD-2021-1002556?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1002556?
No fix has been published for GSD-2021-1002556 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-2021-1002556 being exploited?
There is no known exploitation of GSD-2021-1002556 in the wild and no public exploit code.