GSD-2022-1000769 net: ipv6: ensure we call ipv6_mc_down() at most once
A flaw in the Linux kernel IPv6 multicast handling could allow remote attackers to cause a denial of service by triggering a double free or use-after-free condition.
- 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-2022-1000769?
GSD-2022-1000769 is a denial of service vulnerability in Kernel, published on 18 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
net: ipv6: ensure we call ipv6_mc_down() at most once
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 v5.15.27 by commit b11781515208dd31fbcd0b664078dce5dc44523f, it was introduced in version v3.18 by commit 3ce62a84d53cd3d3cc5377bbf339e9b08ddf9c36. For more details please see the references link.
Which versions are affected by GSD-2022-1000769?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2022-1000769?
No fix has been published for GSD-2022-1000769 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is GSD-2022-1000769 being exploited?
There is no known exploitation of GSD-2022-1000769 in the wild and no public exploit code.