CVE-2021-22466 Use after free in HarmonyOS
Local attackers can exploit a use-after-free flaw in HarmonyOS to cause a kernel crash, resulting in denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-22466?
CVE-2021-22466 is a medium-severity use after free vulnerability in Huawei Harmonyos, published on 28 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A component of the HarmonyOS has a Use After Free vulnerability. Local attackers may exploit this vulnerability to cause kernel crash.
Weakness: CWE-416
Which versions are affected by CVE-2021-22466?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2021-22466?
No fix has been published for CVE-2021-22466 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-22466 being exploited?
There is no known exploitation of CVE-2021-22466 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-72c5-432g-cfc7.