CVE-2021-39998 Race condition in EMUI;Magic UI;HarmonyOS
Concurrent API calls in Huawei mobile OS services can cause system crashes and restarts, requiring a security patch.
- 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-2021-39998?
CVE-2021-39998 is a high-severity vulnerability in Huawei Emui, published on 7 Jan 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
There is Vulnerability of APIs being concurrently called for multiple times in HwConnectivityExService a in smartphones. Successful exploitation of this vulnerability may cause the system to crash and restart.
Which versions are affected by CVE-2021-39998?
It affects 3 products.
Products include Huawei Emui, Huawei Harmonyos, Huawei Magic Ui.
How do I fix CVE-2021-39998?
No fix has been published for CVE-2021-39998 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-39998 being exploited?
There is no known exploitation of CVE-2021-39998 in the wild and no public exploit code.
Other vulnerabilities in Huawei Emui
Sources
Also known as GHSA-mj43-wh93-mw96.