The rehash mechanism in Perl 5.8.2 through 5.16.x allows context-dependent attackers to cause a denial of service (memory consumption and crash) via a crafted hash key.

References

• https://nvd.nist.gov/vuln/detail/CVE-2013-1667
• https://bugzilla.redhat.com/show_bug.cgi?id=912276
• https://exchange.xforce.ibmcloud.com/vulnerabilities/82598
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18771
• https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0094
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=702296
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
• http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
• http://marc.info/?l=bugtraq&m=137891988921058&w=2
• http://osvdb.org/90892
• http://perl5.git.perl.org/perl.git/commitdiff/6e79fe5
• http://perl5.git.perl.org/perl.git/commitdiff/9d83adc
• http://perl5.git.perl.org/perl.git/commitdiff/d59e31f
• http://rhn.redhat.com/errata/RHSA-2013-0685.html
• http://secunia.com/advisories/52472
• http://secunia.com/advisories/52499
• http://www.debian.org/security/2013/dsa-2641
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:113
• http://www.nntp.perl.org/group/perl.perl5.porters/2013/03/msg199755.html
• http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html
• http://www.securityfocus.com/bid/58311
• http://www.ubuntu.com/usn/USN-1770-1