Use After Free in Google Android
CVE-2023-20928
In binder_vma_close of binder.c, there is a possible use after free due to improper locking. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-254837884References: Upstream kernel
Vulnerability class: Use-After-Free
EPSS: 0.002 (10.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android
- N/a Android — versions Android kernel
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@android.com (Vendor Advisory)
- security@android.com
Frequently asked questions
- What is CVE-2023-20928?
- CVE-2023-20928 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2023-01-26.
- How severe is CVE-2023-20928?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-20928 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.