GSD-2022-1007332 wifi: cfg80211/mac80211: reject bad MBSSID elements

Not scored Published

A flaw in Linux kernel WiFi drivers allows attackers to cause a denial of service by sending malformed MBSSID elements.

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-2022-1007332?

GSD-2022-1007332 is a denial of service vulnerability in Kernel, published on 14 Nov 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

wifi: cfg80211/mac80211: reject bad MBSSID elements

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 v5.10.148 by commit e7aa7fd10eba32835de3dfa7f1691a90043faa73, it was introduced in version v5.1 by commit 0b8fb8235be8be99a197e8d948fc0a2df8dc261a. For more details please see the references link.

Which versions are affected by GSD-2022-1007332?

1 open source package ship an affected version, including Kernel.

PackageAffectedFixed in
Kernel LinuxAll versionsNone

How do I fix GSD-2022-1007332?

No fix has been published for GSD-2022-1007332 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-2022-1007332 being exploited?

There is no known exploitation of GSD-2022-1007332 in the wild and no public exploit code.

Sources

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