Use After Free in Google Android
CVE-2021-0703
In SecondStageMain of init.cpp, there is a possible use after free due to incorrect shared_ptr usage. This could lead to local escalation of privilege if the attacker has physical access to the device, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-184569329
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.001 (2.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000
Affected products
- Google Android — versions 11.0
- Android — versions Android-11
Weakness classification (CWE)
References
- source.android.com/security/bulletin/2021-10-01 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-0703?
- CVE-2021-0703 is a medium-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 6.8/10. Published 2021-10-22.
- How severe is CVE-2021-0703?
- Medium severity. CVSS v3 base score is 6.8 out of 10.