Application crash via pdfimages out-of-bounds write
Published Feb 3, 2023 · Updated Mar 27, 2025
Out-of-bounds write in Xpdf pdfimages 4.03 allows attackers to crash the application by supplying a crafted command. The public record identifies pdfimages and an out-of-bounds write but does not disclose the affected function, buffer, or unchecked operation. Exploitation requires Xpdf 4.03 to process attacker-controlled command input, and the documented consequence is process termination rather than data access or code execution.
Summary
What happened
Out-of-bounds write in Xpdf pdfimages 4.03 allows attackers to crash the application by supplying a crafted command. The public record identifies pdfimages and an out-of-bounds write but does not disclose the affected function, buffer, or unchecked operation. Exploitation requires Xpdf 4.03 to process attacker-controlled command input, and the documented consequence is process termination rather than data access or code execution.
The record
- CVE
- CVE-2021-36493
- Published
- Feb 3, 2023
- Updated
- Mar 27, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Feb 3, 2023CVE publishedPublication date reported by the CVE source.
- Mar 27, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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.
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Technologies
Your stack
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Your stack
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