Local heap disclosure via zero-size camera buffer
Published Feb 11, 2022 · Updated Aug 4, 2024
Out-of-bounds read in Android Automotive OS 11 allows local users to disclose heap data through a zero-size camera buffer. startVideoStream() reads past heap buffer bounds when the camera buffer reports a size of zero. Exploitation requires local access and can expose memory contents without additional execution privileges or user interaction.
Summary
What happened
Out-of-bounds read in Android Automotive OS 11 allows local users to disclose heap data through a zero-size camera buffer. startVideoStream() reads past heap buffer bounds when the camera buffer reports a size of zero. Exploitation requires local access and can expose memory contents without additional execution privileges or user interaction.
The record
- CVE
- CVE-2021-39677
- Published
- Feb 11, 2022
- Updated
- Aug 4, 2024
- Vendor
- Product
- Android Automotive OS
- Classifications
- CWE-125
- Attack vector
- local
- Privileges
- Unavailable
Timeline
How it unfolded
- Feb 11, 2022CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record 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-11
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.
Weakness, pattern, technique
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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