Vulnerability CVE-2013-0338
Published: 2013-04-25   Modified: 2013-04-26

Description:
libxml2 2.9.0 and earlier allows context-dependent attackers to cause a denial of service (CPU and memory consumption) via an XML file containing an entity declaration with long replacement text and many references to this entity, aka "internal entity expansion" with linear complexity.

See advisories in our WLB2 database:
Topic
Author
Date
High
libxml2 and expat internal and external XML entity expansion
Kurt Seifried
22.02.2013

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

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
Xmlsoft -> Libxml2 
Opensuse -> Opensuse 
Novell -> Opensuse 
Canonical -> Ubuntu linux 

 References:
http://lists.opensuse.org/opensuse-security-announce/2013-11/msg00002.html
http://lists.opensuse.org/opensuse-updates/2013-03/msg00112.html
http://lists.opensuse.org/opensuse-updates/2013-03/msg00114.html
http://marc.info/?l=bugtraq&m=142798889927587&w=2
http://www.debian.org/security/2013/dsa-2652
http://www.mandriva.com/security/advisories?name=MDVSA-2013:056
http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html
http://www.ubuntu.com/usn/USN-1782-1
https://bugzilla.redhat.com/show_bug.cgi?id=912400
https://git.gnome.org/browse/libxml2/commit/?id=23f05e0c33987d6605387b300c4be5da2120a7ab
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