Memory disclosure via unchecked AcroForm object access
Published Feb 15, 2024 · Updated Aug 1, 2024
AcroForm use-after-free in Adobe Acrobat and Reader allows remote attackers to disclose process memory after a malicious file is opened. AcroForm handling performs operations on a freed object without first validating that the object still exists, exposing memory content and weakening ASLR. Affected releases are 23.008.20470 and earlier and 2020 20.005.30539 and earlier; exploitation requires a victim to visit a malicious page or open a malicious file.
Summary
What happened
AcroForm use-after-free in Adobe Acrobat and Reader allows remote attackers to disclose process memory after a malicious file is opened. AcroForm handling performs operations on a freed object without first validating that the object still exists, exposing memory content and weakening ASLR. Affected releases are 23.008.20470 and earlier and 2020 20.005.30539 and earlier; exploitation requires a victim to visit a malicious page or open a malicious file.
The record
- CVE
- CVE-2024-20734
- Published
- Feb 15, 2024
- Updated
- Aug 1, 2024
- Vendor
- Adobe
- Product
- Adobe Acrobat
- Classifications
- CWE-416, T1204.002
- Attack vector
- local
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 15, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 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 <=23.008.20470
- Affected versionversion=2020 <=20.005.30539
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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