Local privilege escalation via audio callback overflow
Published Apr 5, 2024 · Updated Aug 13, 2024
Stack-based buffer overflow in Google Android's audio kernel code allows local users to escalate privileges without user interaction. The afe_callback function in q6afe.c performs an out-of-bounds write to a stack buffer; Google has not disclosed the triggering input. Execution on an affected Pixel device is required, and successful exploitation raises privileges locally without additional execution privileges.
Summary
What happened
Stack-based buffer overflow in Google Android's audio kernel code allows local users to escalate privileges without user interaction. The afe_callback function in q6afe.c performs an out-of-bounds write to a stack buffer; Google has not disclosed the triggering input. Execution on an affected Pixel device is required, and successful exploitation raises privileges locally without additional execution privileges.
The record
- CVE
- CVE-2024-29756
- Published
- Apr 5, 2024
- Updated
- Aug 13, 2024
- Vendor
- Product
- Android
- Classifications
- CWE-121, T1404
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 5, 2024CVE publishedPublication date reported by the CVE source.
- Aug 13, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=*
- Affected versionversion=Android kernel
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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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