Vulnerability CVE-2013-1812
Published: 2013-12-12

Description:
The ruby-openid gem before 2.2.2 for Ruby allows remote OpenID providers to cause a denial of service (CPU consumption) via (1) a large XRDS document or (2) an XML Entity Expansion (XEE) attack.

Type:

CWE-399

 (Resource Management Errors)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Janrain -> Ruby-openid 
Fedoraproject -> Fedora 

 References:
https://github.com/openid/ruby-openid/commit/a3693cef06049563f5b4e4824f4d3211288508ed
http://www.openwall.com/lists/oss-security/2013/03/03/8
https://github.com/openid/ruby-openid/pull/43
https://github.com/openid/ruby-openid/blob/master/CHANGELOG.md
https://bugzilla.redhat.com/show_bug.cgi?id=918134
http://lists.fedoraproject.org/pipermail/package-announce/2013-November/120361.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-November/120204.html
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