{"id":"CVE-2012-3456","url":"https://www.cyber-defence.io/tools/cve/CVE-2012-3456","generatedAt":"2026-11-05T08:12:34.943Z","title":"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…","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.","published":"2012-08-20T18:55:04.000Z","lastModified":"2026-06-16T23:43:15.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":7.5,"severity":"HIGH","vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},"cwe":["CWE-119"],"affected":["calligra/calligra"],"epss":{"score":0.20073,"percentile":0.97456,"date":"2026-11-04","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2012-08-07","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":37576,"kind":"exploit","title":"Alligra Calligra - Heap Buffer Overflow","url":"https://www.exploit-db.com/exploits/37576","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/37576.cpp","file":"exploits/linux/remote/37576.cpp","published":"2012-08-07","added":"2012-08-07","updated":"2015-07-13","author":"Charlie Miller","type":"remote","platform":"linux","port":null,"verified":true,"codes":["CVE-2012-3456","OSVDB-84653"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/54816/info"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 20.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00026.html","source":"secalert@redhat.com"},{"url":"http://marc.info/?l=bugtraq&m=136733075705494&w=2","source":"secalert@redhat.com"},{"url":"http://media.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdf","source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/50050","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.kde.org/info/security/advisory-20120810-1.txt","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/04/1","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/04/5","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/06/1","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/06/6","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/10/1","source":"secalert@redhat.com"},{"url":"http://www.securityfocus.com/bid/54816","tags":["Exploit"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1525-1","source":"secalert@redhat.com"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/77482","source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00026.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://marc.info/?l=bugtraq&m=136733075705494&w=2","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://media.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdf","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/50050","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kde.org/info/security/advisory-20120810-1.txt","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/04/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/04/5","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/06/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/06/6","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2012/08/10/1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/54816","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1525-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/77482","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2012-3456","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}