Adjacent information disclosure via unchecked AVRCP length
Published Sep 2, 2022 · Updated Apr 15, 2026
Information disclosure in BlueZ before 5.59 allows physically proximate attackers to read sensitive memory via malformed AVRCP data. The parser in profiles/audio/avrcp.c accepts params_len without verifying that it matches the remaining packet bytes, leading to invalid memory access. Exploitation requires Bluetooth proximity and exposes sensitive information through an out-of-bounds read.
Summary
What happened
Information disclosure in BlueZ before 5.59 allows physically proximate attackers to read sensitive memory via malformed AVRCP data. The parser in profiles/audio/avrcp.c accepts params_len without verifying that it matches the remaining packet bytes, leading to invalid memory access. Exploitation requires Bluetooth proximity and exposes sensitive information through an out-of-bounds read.
The record
- CVE
- CVE-2022-39176
- Published
- Sep 2, 2022
- Updated
- Apr 15, 2026
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- Unavailable
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 2, 2022CVE publishedPublication date reported by the CVE source.
- Apr 15, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
Published CVSS scores
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Attacks
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Weakness, pattern, technique
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Public exploit references
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Technologies
Your stack
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Your stack
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