CVE-2021-39990 Memory corruption in HarmonyOS
A stack-based buffer overflow in the HarmonyOS screen lock module allows attackers to disrupt user experience, likely causing a crash.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-39990?
CVE-2021-39990 is a critical memory corruption vulnerability in Huawei Harmonyos, published on 3 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The screen lock module has a Stack-based Buffer Overflow vulnerability.Successful exploitation of this vulnerability may affect user experience.
Weakness: CWE-787
Which versions are affected by CVE-2021-39990?
It affects 1 product.
Products include Huawei Harmonyos.
How do I fix CVE-2021-39990?
No fix has been published for CVE-2021-39990 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-39990 being exploited?
There is no known exploitation of CVE-2021-39990 in the wild and no public exploit code.
Other vulnerabilities in Huawei Harmonyos
Sources
Also known as GHSA-89m3-rrvf-rq86.