CVE-2012-3456
Heap-based buffer overflow in the read function in filters/words/msword-odf/wv2/src/styles.cpp in...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2012-3456- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2012-3456- Updated
- 2026-11-02
EUVDEUVD-2012-3417 No score
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.
- Record
EUVD-2012-3417- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-gmv4-h63m-hqgg No score
Heap-based buffer overflow in the read function in filters/words/msword-odf/wv2/src/styles.cpp in...
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.
- Record
GHSA-gmv4-h63m-hqgg- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2012-3456- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-3456 No score
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.
- Record
DEBIAN-CVE-2012-3456- Updated
- 2026-11-02
Affected products
Affected packages
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Alligra Calligra - Heap Buffer Overflow | 2012-08-07 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-3456 is a high vulnerability (CVSS 7.5) in Calligra, published August 20, 2012. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 20.1%, the 97th percentile. Fixed in calligra 1:2.4.3-2.
References
exchange.xforce.ibmcloud.com/vulnerabilities/77482
openwall.com/lists/oss-security/2012/08/10/1
lists.opensuse.org/opensuse-security-announce/2012-08/msg00026.html
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marc.info?l=bugtraq&m=136733075705494&w=2
media.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdf
ubuntu.com/usn/USN-1525-1
kde.org/info/security/advisory-20120810-1.txt
secunia.com/advisories/50050
securityfocus.com/bid/54816
nvd.nist.gov/vuln/detail/CVE-2012-3456
github.com/advisories/GHSA-gmv4-h63m-hqgg
security-tracker.debian.org/tracker/CVE-2012-3456