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CVE-2012-3456

7.5 · HIGH

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…

Published Aug 20, 2012calligraCWE-119EPSS 20.07%

Overview

CVE-2012-3456 is a high-severity vulnerability affecting calligra calligra. It was published on August 20, 2012 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from calligra. Update calligra to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
calligracalligra0Affected

References

Reflists.opensuse.org/opensuse-security-announce/2012-08/msg00026.htmlRefmarc.info/?l=bugtraq&m=136733075705494&w=2Refmedia.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdfRefsecunia.com/advisories/50050Refwww.kde.org/info/security/advisory-20120810-1.txtRefwww.openwall.com/lists/oss-security/2012/08/04/1Refwww.openwall.com/lists/oss-security/2012/08/04/5Refwww.openwall.com/lists/oss-security/2012/08/06/1Refwww.openwall.com/lists/oss-security/2012/08/06/6Refwww.openwall.com/lists/oss-security/2012/08/10/1

How CyberStrike helps

Frequently asked questions

What is CVE-2012-3456?

CVE-2012-3456 is a high-severity vulnerability affecting calligra calligra. It was published on August 20, 2012 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2012-3456?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2012-3456?

Check the references section for vendor advisories and patches from calligra. Update calligra to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2012-3456?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-3456 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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