xpdf 4.04 allocates excessive memory when presented with crafted input. This can be triggered by (for example) sending a crafted PDF document to the pdftoppm binary. It is most easily reproduced with the DCMAKE_CXX_COMPILER=afl-clang-fast++ option.
Created xpdf tracking bugs for this issue:
Affects: epel-7 [bug 2086428]
Affects: fedora-34 [bug 2086429]
Affects: fedora-35 [bug 2086427]
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.