https://bugzilla.redhat.com/show_bug.cgi?id=1593318 --- Comment #6 from Petr Pisar <ppisar@xxxxxxxxxx> --- Email-Address-1.910 (1.911 and 1.912 updates a documentation) fixes this vulnerability by extensive use of independent subexpressions ("(?>pattern)" constructs) that prevents from undesired backtracking. An excerpt from the fix: -my $cfws = qr/$comment|\s+/; +my $cfws = qr/$comment|(?>\s+)/; The exponential backtracking is the cause of this vulnerability and is indeed fixed: [test@fedora-30 Email-Address-1.912]$ time perl -Ilib -e 'use Email::Address; Email::Address->parse("\f" x 30)' real 0m0.017s user 0m0.010s sys 0m0.007s -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ perl-devel mailing list -- perl-devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to perl-devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/perl-devel@xxxxxxxxxxxxxxxxxxxxxxx
