CVE-2023-22436 The kernel subsystem function check_permission_for_set_tokenid has an UAF vulnerability.
Local attackers can exploit a use-after-free vulnerability in the OpenHarmony kernel to escalate privileges to root.
- 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-2023-22436?
CVE-2023-22436 is a high-severity use after free vulnerability in Openatom Openharmony, published on 10 Mar 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The kernel subsystem function check_permission_for_set_tokenid within OpenHarmony-v3.1.5 and prior versions has an
UAF vulnerability which local attackers can exploit this vulnerability to escalate the privilege to root.
Which versions are affected by CVE-2023-22436?
It affects 1 product.
Products include Openatom Openharmony.
How do I fix CVE-2023-22436?
No fix has been published for CVE-2023-22436 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-2023-22436 being exploited?
There is no known exploitation of CVE-2023-22436 in the wild and no public exploit code.
Other vulnerabilities in Openatom Openharmony
- CVE-2025-0303 Liteos_a has a buffer overflow vulnerability
- CVE-2025-0304 Liteos_a has an use after free vulnerability
- CVE-2024-47398 Liteos_a has an out-of-bounds write vulnerability
- CVE-2024-10074 Liteos_a has an use after free vulnerability
- CVE-2024-41157 Liteos-A has an use after free vulnerability
Sources
Also known as GHSA-6vw3-qjc8-x8j8.