A security flaw was found in the Wireshark's SMTP dissector -- routines for SMTP packet disassembly. A remote attacker could use this flaw to cause a denial of service (infinite loop) via sending a large SMTP request to port 25.
Proposed upstream patches:
The Red Hat Security Response Team has rated this issue as having low security
impact, a future update may address this flaw. More information regarding
issue severity can be found here:
This issue was addressed in:
Red Hat Enterprise Linux: