Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-19473
CVE-2020-19473:
Homebrew vulnerability analysis and mitigation
Overview
An issue has been found in function DCTStream::decodeImage in PDF2JSON 0.70 that allows attackers to cause a Denial of Service due to an uncaught floating point exception (GitHub Issue).
Technical details
The vulnerability exists in the DCTStream::decodeImage function where an integer divide by zero error occurs during image decoding. The issue manifests when processing certain malformed PDF files, leading to a floating point exception (SIGFPE) at address 0x802EBDD05. This was confirmed through Valgrind analysis which showed the crash occurring in the decodeImage() function call stack (GitHub Issue).
Impact
When exploited, this vulnerability results in a Denial of Service condition by causing the application to crash due to an unhandled floating point exception. This affects the availability of the PDF2JSON service (GitHub Issue).
Mitigation and workarounds
At the time of disclosure, no official patch or mitigation was provided for this vulnerability. Users should exercise caution when processing untrusted PDF files with PDF2JSON 0.70 (GitHub Issue).
Additional resources
Source: This report was generated using AI
Related Homebrew vulnerabilities:
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