Process-memory disclosure or application crash via bounds error
Published Aug 24, 2021 · Updated Aug 3, 2024
Out-of-bounds read in AppleScript in Apple macOS allows attackers to crash an application or disclose process memory via a crafted binary. AppleScript binary processing reads beyond a buffer boundary because it does not adequately validate bounds. Exploitation requires a user or application to process the malicious binary, and the reported consequences are application termination or process-memory disclosure.
Summary
What happened
Out-of-bounds read in AppleScript in Apple macOS allows attackers to crash an application or disclose process memory via a crafted binary. AppleScript binary processing reads beyond a buffer boundary because it does not adequately validate bounds. Exploitation requires a user or application to process the malicious binary, and the reported consequences are application termination or process-memory disclosure.
The record
- CVE
- CVE-2021-30877
- Published
- Aug 24, 2021
- Updated
- Aug 3, 2024
- Vendor
- Apple
- Product
- macOS
- Classifications
- CWE-125, 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
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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 <12.0
- 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.
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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