Vulnerability CVE-2014-8090
Published: 2014-11-21

Description:
The REXML parser in Ruby 1.9.x before 1.9.3 patchlevel 551, 2.0.x before 2.0.0 patchlevel 598, and 2.1.x before 2.1.5 allows remote attackers to cause a denial of service (CPU and memory consumption) a crafted XML document containing an empty string in an entity that is used in a large number of nested entity references, aka an XML Entity Expansion (XEE) attack. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-1821 and CVE-2014-8080.

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Ruby-lang -> RUBY 

 References:
http://advisories.mageia.org/MGASA-2014-0472.html
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
http://lists.opensuse.org/opensuse-updates/2014-12/msg00035.html
http://lists.opensuse.org/opensuse-updates/2015-01/msg00000.html
http://lists.opensuse.org/opensuse-updates/2015-01/msg00004.html
http://rhn.redhat.com/errata/RHSA-2014-1911.html
http://rhn.redhat.com/errata/RHSA-2014-1912.html
http://rhn.redhat.com/errata/RHSA-2014-1913.html
http://rhn.redhat.com/errata/RHSA-2014-1914.html
http://secunia.com/advisories/62050
http://www.debian.org/security/2015/dsa-3157
http://www.debian.org/security/2015/dsa-3159
http://www.mandriva.com/security/advisories?name=MDVSA-2015:129
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.securityfocus.com/bid/71230
http://www.ubuntu.com/usn/USN-2412-1
https://support.apple.com/HT205267
https://www.ruby-lang.org/en/news/2014/11/13/rexml-dos-cve-2014-8090/
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