Local privilege escalation via oversized HTML template
Published Jul 24, 2022 · Updated Apr 15, 2025
Buffer overflow in Convert_Pro.dll in Anvsoft PDFMate PDF Converter Pro 1.7.5.0 allows local users to gain higher privileges. HtmlBook::BuildIndex processes an oversized Unicode title from htmltemplate/index.html without a safe buffer bound, overwriting registers during HTML conversion. Low-privileged access to alter the installed template and run HTML conversion is required; the published proof of concept demonstrates a process crash and instruction-pointer control.
Summary
What happened
Buffer overflow in Convert_Pro.dll in Anvsoft PDFMate PDF Converter Pro 1.7.5.0 allows local users to gain higher privileges. HtmlBook::BuildIndex processes an oversized Unicode title from htmltemplate/index.html without a safe buffer bound, overwriting registers during HTML conversion. Low-privileged access to alter the installed template and run HTML conversion is required; the published proof of concept demonstrates a process crash and instruction-pointer control.
The record
- CVE
- CVE-2017-20144
- Published
- Jul 24, 2022
- Updated
- Apr 15, 2025
- Vendor
- Anvsoft
- Product
- PDFMate PDF Converter Pro
- Classifications
- CWE-119, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 24, 2022CVE publishedPublication date reported by the CVE source.
- Apr 15, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.7.5.0
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.
Weakness, pattern, technique
Public exploit references
- PDFMate PDF Converter Pro 1.7.5.0 buffer-overflow proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo