Xpdf 4.04 will deadlock on a PDF object stream whose "Length" field is itself in another object stream. https://forum.xpdfreader.com/viewtopic.php?t=42618
Created xpdf tracking bugs for this issue: Affects: epel-all [bug 2218073] Affects: fedora-all [bug 2218074]
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.