National Cyber-Alert System
Vulnerability Summary for CVE-2008-4409
Original release date:10/03/2008
Last revised:06/23/2009
Source:
US-CERT/NIST
Overview
libxml2 2.7.0 and 2.7.1 does not properly handle "predefined entities definitions" in entities, which allows context-dependent attackers to cause a denial of service (memory consumption and application crash), as demonstrated by use of xmllint on a certain XML document, a different vulnerability than CVE-2003-1564 and CVE-2008-3281.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
Solution
Patch Information - http://www.securityfocus.com/bid/30783/solution}
- Official Statement from Red Hat (01/01/1900)
-
Not vulnerable. This issue did not affect the versions of libxml2 as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5.
References to Advisories, Solutions, and Tools
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External Source: FEDORA
Name: FEDORA-2008-8582
External Source: FEDORA
Name: FEDORA-2008-8575
External Source: XF
Name: libxml2-xml-file-dos(45633)
External Source: VUPEN
Name: ADV-2009-1621
External Source: VUPEN
Name: ADV-2009-1522
External Source: BID
Name: 31555
External Source: MANDRIVA
Name: MDVSA-2008:212
External Source: CONFIRM
Name: http://support.apple.com/kb/HT3639
External Source: CONFIRM
Name: http://support.apple.com/kb/HT3613
External Source: GENTOO
Name: GLSA-200812-06
External Source: SECUNIA
Name: 35379
External Source: SECUNIA
Name: 32974
External Source: SECUNIA
Name: 32175
External Source: SECUNIA
Name: 32130
External Source: MLIST
Name: [oss-security] 20081002 libxml2 "ampproblem" DoS
External Source: APPLE
Name: APPLE-SA-2009-06-17-1
External Source: APPLE
Name: APPLE-SA-2009-06-08-1
External Source: CONFIRM
Name: http://bugzilla.gnome.org/show_bug.cgi?id=554660