Heap-based buffer overflow in the read function in…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:calligra:calligra:*:*:*:*:*:*:*:* | up to 2.4.3 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4:*:*:*:*:*:*:* | 2.4 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4:beta2:*:*:*:*:*:* | 2.4 beta2 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4:beta3:*:*:*:*:*:* | 2.4 beta3 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4:beta4:*:*:*:*:*:* | 2.4 beta4 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4:beta6:*:*:*:*:*:* | 2.4 beta6 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4:beta7:*:*:*:*:*:* | 2.4 beta7 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4:rc2:*:*:*:*:*:* | 2.4 rc2 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4.1:*:*:*:*:*:*:* | 2.4.1 | Vulnerable | Calligra |
| cpe:2.3:a:calligra:calligra:2.4.2:*:*:*:*:*:*:* | 2.4.2 | Vulnerable | Calligra |
- cpe:2.3:a:calligra:calligra:*:*:*:*:*:*:*:* Versions up to 2.4.3 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4:*:*:*:*:*:*:* Versions 2.4 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4:beta2:*:*:*:*:*:* Versions 2.4 beta2 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4:beta3:*:*:*:*:*:* Versions 2.4 beta3 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4:beta4:*:*:*:*:*:* Versions 2.4 beta4 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4:beta6:*:*:*:*:*:* Versions 2.4 beta6 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4:beta7:*:*:*:*:*:* Versions 2.4 beta7 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4:rc2:*:*:*:*:*:* Versions 2.4 rc2 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4.1:*:*:*:*:*:*:* Versions 2.4.1 Vulnerable ·Calligra
- cpe:2.3:a:calligra:calligra:2.4.2:*:*:*:*:*:*:* Versions 2.4.2 Vulnerable ·Calligra
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2012-3456
- 2026-10-03 Alias added: GHSA-gmv4-h63m-hqgg
References
Other 7
- [oss-security] 20120810 Re: CVE request for Calligra
- [oss-security] 20120806 Re: CVE request for Calligra
- [oss-security] 20120805 Re: CVE request for Calligra
- [oss-security] 20120804 Re: CVE request for Calligra
- http://media.blackhat.com/bh-us-12/Briefings/C_Miller/BH_US_12_Miller_NFC_attack_surface_WP.pdf
- [oss-security] 20120804 CVE request for Calligra
- http://www.kde.org/info/security/advisory-20120810-1.txt
Sources
- CVE-2012-3456 · CVE Program
- CVE-2012-3456 · NVD
- FIRST EPSS
- GHSA-gmv4-h63m-hqgg · GitHub Advisory Database · CC BY 4.0
- CVE-2012-3456 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences