Memory disclosure via undersized glyph variation data
Published May 15, 2024 · Updated Feb 13, 2025
Out-of-bounds read in Adobe Acrobat and Reader 24.002.20736 and earlier allows attackers to disclose memory via a crafted PDF. The CoolType font parser accepts gvar GlyphVariationData smaller than its tuple-header data, then indexes beyond the table boundary. A victim must open the file; the read exposes process memory useful for bypassing ASLR, without reported write or execution impact.
Summary
What happened
Out-of-bounds read in Adobe Acrobat and Reader 24.002.20736 and earlier allows attackers to disclose memory via a crafted PDF. The CoolType font parser accepts gvar GlyphVariationData smaller than its tuple-header data, then indexes beyond the table boundary. A victim must open the file; the read exposes process memory useful for bypassing ASLR, without reported write or execution impact.
The record
- CVE
- CVE-2024-30311
- Published
- May 15, 2024
- Updated
- Feb 13, 2025
- Vendor
- Adobe
- Product
- Adobe Acrobat
- Classifications
- CWE-125, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 15, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record 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=2020 <=20.005.30574
- Affected versionversion=- <=24.002.20736
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
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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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