Local information disclosure via incorrect bounds check
Published Dec 16, 2022 · Updated Apr 18, 2025
Out-of-bounds read in the Android kernel LDFW component allows local users to disclose information without user interaction. The read_ppmpu_info function in drm_fw.c applies an incorrect bounds check before reading firmware data, allowing access beyond the intended buffer. Exploitation requires local low-privileged access to an affected Pixel device; the published impact is limited to information disclosure.
Summary
What happened
Out-of-bounds read in the Android kernel LDFW component allows local users to disclose information without user interaction. The read_ppmpu_info function in drm_fw.c applies an incorrect bounds check before reading firmware data, allowing access beyond the intended buffer. Exploitation requires local low-privileged access to an affected Pixel device; the published impact is limited to information disclosure.
The record
- CVE
- CVE-2022-20575
- Published
- Dec 16, 2022
- Updated
- Apr 18, 2025
- Vendor
- Google Cloud
- Product
- Android
- Classifications
- CWE-125, T1533
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 16, 2022CVE publishedPublication date reported by the CVE source.
- Apr 18, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=Android kernel
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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