A zero length Called or Calling Party Number can cause a buffer under-run and Asterisk crash.
Created asterisk tracking bugs for this issue:
Affects: epel-8 [bug 2150950]
Affects: fedora-all [bug 2150951]
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.