In Xpdf 4.01.01, there is an out-of-bounds read vulnerability in the function SplashXPath::strokeAdjust() located at splash/SplashXPath.cc. It can, for example, be triggered by sending a crafted PDF document to the pdftoppm tool. It might allow an attacker to cause Information Disclosure. This is related to CVE-2018-16368.
https://github.com/PanguL4b/pocs/tree/master/xpdf/out-of-bounds-read-in-SplashXPath__strokeAdjust