CVE-2023-21108 Use after free in Android
Remote attackers can execute arbitrary code via Bluetooth if HFP is enabled, requiring no user interaction or privileges.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-21108?
CVE-2023-21108 is a high-severity use after free vulnerability in Google Android, published on 15 Jun 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In sdpu_build_uuid_seq of sdp_discovery.cc, there is a possible out of bounds write due to a use after free. This could lead to remote code execution over Bluetooth, if HFP support is enabled, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11 Android-12 Android-12L Android-13Android ID: A-239414876
Weakness: CWE-416
Which versions are affected by CVE-2023-21108?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2023-21108?
Apply the vendor's patch.
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-2023-21108 being exploited?
There is no known exploitation of CVE-2023-21108 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-239414876, ASB-A-239414876, GHSA-ffj9-qpw7-77qh.