CVE-2021-22456 Denial of service in HarmonyOS
Local attackers can exploit a data processing error in HarmonyOS to cause kernel unavailability, resulting in a 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-2021-22456?
CVE-2021-22456 is a medium-severity denial of service 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 Data Processing Errors vulnerability. Local attackers may exploit this vulnerability to cause Kernel System unavailable.
Which versions are affected by CVE-2021-22456?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2021-22456?
No fix has been published for CVE-2021-22456 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 CVE-2021-22456 being exploited?
There is no known exploitation of CVE-2021-22456 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-37v3-xpv3-q22j.