GSD-2021-1001723 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap
An attacker with local access or adjacent network proximity can cause a denial of service in the Linux kernel by injecting malformed VHT MCS/NSS values in radiotap headers.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is GSD-2021-1001723?
GSD-2021-1001723 is a denial of service vulnerability in Kernel, published on 19 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap
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 v5.14.10 by commit 997ee230e4f5285cd98445c102d9033c7ec4814b, it was introduced in version v4.7 by commit 646e76bb5daf4ca38438c69ffb72cccb605f3466. For more details please see the references link.
Which versions are affected by GSD-2021-1001723?
1 open source package ship an affected version, including Kernel.
| Package | Affected | Fixed in |
|---|---|---|
Kernel Linux | All versions | None |
How do I fix GSD-2021-1001723?
No fix has been published for GSD-2021-1001723 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-2021-1001723 being exploited?
There is no known exploitation of GSD-2021-1001723 in the wild and no public exploit code.