CVE-2021-39809 Information disclosure in Android
A missing bounds check in Android's AVRCP controller allows remote attackers to read out-of-bounds memory, leading to information disclosure without user interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-39809?
CVE-2021-39809 is a high-severity vulnerability in Google Android, published on 12 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In avrc_ctrl_pars_vendor_rsp of avrc_pars_ct.cc, there is a possible out of bounds read due to a missing bounds check. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12 Android-12LAndroid ID: A-205837191
Weakness: CWE-125
Which versions are affected by CVE-2021-39809?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2021-39809?
Apply the vendor's patch.
Is CVE-2021-39809 being exploited?
There is no known exploitation of CVE-2021-39809 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-205837191, ASB-A-205837191, GHSA-7f27-m2mg-3h27.