Information disclosure via CoreAudio buffer overflow
Published Aug 24, 2021 · Updated Aug 3, 2024
A buffer overflow in CoreAudio in Apple macOS Big Sur before 11.6.2 and Catalina allows attackers to disclose data via crafted audio. CoreAudio mishandles memory while parsing attacker-controlled audio, overflowing a buffer; Apple has not disclosed the affected parser or copy operation. Exploitation requires user interaction to open or process the file, and the reported consequence is information disclosure without integrity or availability impact.
Summary
What happened
A buffer overflow in CoreAudio in Apple macOS Big Sur before 11.6.2 and Catalina allows attackers to disclose data via crafted audio. CoreAudio mishandles memory while parsing attacker-controlled audio, overflowing a buffer; Apple has not disclosed the affected parser or copy operation. Exploitation requires user interaction to open or process the file, and the reported consequence is information disclosure without integrity or availability impact.
The record
- CVE
- CVE-2021-30963
- Published
- Aug 24, 2021
- Updated
- Aug 3, 2024
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-120, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 24, 2021CVE publishedPublication date reported by the CVE source.
- Aug 3, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <11.6
- Affected versionversion=unspecified <2021
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.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo