CVE-2023-20928: Use After Free
In bindervmaclose 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
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1
Event History
Frequently Asked Questions
What is the severity of CVE-2023-20928?
CVE-2023-20928 has a high severity rating due to its potential for local privilege escalation.
How do I fix CVE-2023-20928?
To fix CVE-2023-20928, update the Android kernel to the latest version that addresses this issue.
Which versions of Android are affected by CVE-2023-20928?
CVE-2023-20928 affects multiple versions of the Android kernel including versions prior to patches released in recent updates.
Is user interaction required for exploiting CVE-2023-20928?
No, user interaction is not required for exploiting CVE-2023-20928.
What type of vulnerability is CVE-2023-20928?
CVE-2023-20928 is classified as a use after free vulnerability caused by improper locking in binder management.