Code execution via TTF parser out-of-bounds write
Published Feb 25, 2021 · Updated Sep 16, 2024
Out-of-bounds write in Adobe Bridge 11.0 and earlier allows context-dependent attackers to execute code when a user opens a malicious TTF file. The TTF parser writes beyond an allocated memory boundary while processing crafted font data; Adobe has not identified the responsible function. Opening the file is required, and resulting code runs with the current user's privileges.
Summary
What happened
Out-of-bounds write in Adobe Bridge 11.0 and earlier allows context-dependent attackers to execute code when a user opens a malicious TTF file. The TTF parser writes beyond an allocated memory boundary while processing crafted font data; Adobe has not identified the responsible function. Opening the file is required, and resulting code runs with the current user's privileges.
The record
- CVE
- CVE-2021-21066
- Published
- Feb 25, 2021
- Updated
- Sep 16, 2024
- Vendor
- Adobe
- Product
- Adobe Bridge
- Classifications
- CWE-787, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 25, 2021CVE publishedPublication date reported by the CVE source.
- Sep 16, 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 <=11.0
- Affected versionversion=unspecified <=None
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.
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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