PDF2JSON CCITTFaxStream::lookChar Denial of Service Vulnerability

PDF2JSON is a conversion library based on XPDF (3.02) that can be used to convert PDF pages page by page to JSON and XML formats. A denial of service vulnerability exists in the CCITTFaxStream::lookChar function in PDF2JSON version 0.70. The vulnerability stems from an invalid write of size 2. An attacker could exploit this vulnerability to cause a denial of service.