The parse function in Email::Address module before 1.905 for Perl uses an inefficient regular expression, which allows remote attackers to cause a denial of service (CPU consumption) via an empty quoted string in an RFC 2822 address.
Exploitability
AV:NAC:LAu:NImpact
C:NI:NA:P5/AV:N/AC:L/Au:N/C:N/I:N/A:P