CVE-2023-20938: Input Validation
First published: Mon Feb 06 2023(Updated: )
In binder_transaction_buffer_release of binder.c, there is a possible use after free due to improper input validation. 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-257685302References: Upstream kernel
Credit: security@android.com security@android.com security@android.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Google Android | ||
| Google Android | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.11-1 6.12.12-1 |
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Reference Links
- https://source.android.com/security/bulletin/2023-02-01
- https://launchpad.net/bugs/cve/CVE-2023-20938
- https://android.googlesource.com/kernel/common/+/baa23246e93f
- https://android.googlesource.com/kernel/common/+/3d213a626d2d
- https://android.googlesource.com/kernel/common/+/9d1efccf5ec3
- https://android.googlesource.com/kernel/common/+/b83173bf86a9
- https://android.googlesource.com/kernel/common/+/aaf236971732
- https://android.googlesource.com/kernel/common/+/ecf61e4e1117
- https://source.android.com/docs/security/bulletin/2023-02-01 (Advisory)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-20938
- https://nvd.nist.gov/vuln/detail/CVE-2023-20938
- https://security-tracker.debian.org/tracker/CVE-2023-20938
- https://ubuntu.com/security/CVE-2023-20938
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