Vulnerability CVE-2012-3456
Published: 2012-08-20   Modified: 2012-08-21

Description:
Heap-based buffer overflow in the read function in filters/words/msword-odf/wv2/src/styles.cpp in the Microsoft import filter in Calligra 2.4.3 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted ODF style in an ODF document. NOTE: this is the same vulnerability as CVE-2012-3455, but it was SPLIT by the CNA even though Calligra and KOffice share the same codebase.

See advisories in our WLB2 database:
Topic
Author
Date
High
KDE Calligra and KOffice Input Validation Failure
KDE Team
21.08.2012

Type:

CWE-119

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

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Calligra -> Calligra 

 References:
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00026.html
http://marc.info/?l=bugtraq&m=136733075705494&w=2
http://media.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdf
http://www.kde.org/info/security/advisory-20120810-1.txt
http://www.openwall.com/lists/oss-security/2012/08/04/1
http://www.openwall.com/lists/oss-security/2012/08/04/5
http://www.openwall.com/lists/oss-security/2012/08/06/1
http://www.openwall.com/lists/oss-security/2012/08/06/6
http://www.openwall.com/lists/oss-security/2012/08/10/1
http://www.securityfocus.com/bid/54816
http://www.ubuntu.com/usn/USN-1525-1
http://xforce.iss.net/xforce/xfdb/77482
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