CVE-2015-7686

NameCVE-2015-7686
DescriptionAlgorithmic complexity vulnerability in Address.pm in the Email-Address module 1.908 and earlier for Perl allows remote attackers to cause a denial of service (CPU consumption) via a crafted string containing a list of e-mail addresses in conjunction with parenthesis characters that can be associated with nested comments. NOTE: the default configuration in 1.908 mitigates this vulnerability but misparses certain realistic comments.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: remote)
Debian Bugs868170

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libemail-address-perl (PTS)jessie1.905-2vulnerable
stretch1.908-1+deb9u1fixed
buster, sid1.912-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libemail-address-perlsource(unstable)1.912-1unimportant868170
libemail-address-perlsourcestretch1.908-1+deb9u1high

Notes

[jessie] - libemail-address-perl <no-dsa> (Minor issue)
[wheezy] - libemail-address-perl <no-dsa> (Minor issue)
[squeeze] - libemail-address-perl <no-dsa> (Minor issue)
http://www.openwall.com/lists/oss-security/2015/10/02/13
Possibility of DoS vs. usability issue for Email::Address
Mitigation: https://github.com/Perl-Email-Project/Email-Address/commit/aeaf0d7f1b0897b54cb246b8ac15d3ef177e5cae

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