It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.
Created wireshark tracking bugs for this issue:
Affects: fedora-all [bug 1625927]
Created attachment 1487125 [details]
Impacts RHEL6/7. Invalid reads in valgrind, patch looks applicable.
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):
This issue has been addressed in the following products:
Red Hat Enterprise Linux 7
Via RHSA-2020:1047 https://access.redhat.com/errata/RHSA-2020:1047