Use-After-Free in Camsys Causing Local Privilege Escalation
CVE-2023-20835 Published on September 4, 2023
In camsys, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07341261; Issue ID: ALPS07326570.
Vulnerability Analysis
CVE-2023-20835 can be exploited with local system access, and requires user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Types
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2023-20835 has been classified to as a Race Condition vulnerability or weakness.
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2023-20835 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2023-20835
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Affected Versions
MediaTek, Inc. MT6895, MT6983, MT8188, MT8195, MT8395, MT8781:- Version Android 12.0, 13.0 / IOT-v23.0 (Yocto 4.0) is affected.
- Version Android 12.0 is affected.
- Version Android 13.0 is affected.
- Version IOT-v23.0 (Yocto 4.0) is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.