Memory corruption in Ichitaro
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
When copying filedata into a buffer, JustSystems Ichitaro Office 2016 Trial will calculate two values to determine how much data to copy from the document. If both of these values are larger than the size of the buffer, the application will choose the smaller of the two and trust it to copy data from the file. This value is larger than the buffer size, which leads to a heap-based buffer overflow. This overflow corrupts an offset in the heap used in pointer arithmetic for writing data and can lead to code execution under the context of the application.
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 |
|---|---|---|---|---|---|
| Ichitaro 2023 | Ichitaro | all versions | — | No fix listed | CNA |
- Ichitaro VendorIchitaro 2023 Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:justsystems:ichitaro:*:*:*:*:*:*:*:* | all versions | Vulnerable | Ichitaro 2023 |
- cpe:2.3:a:justsystems:ichitaro:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Ichitaro 2023
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-2789
- 2026-10-03 Alias added: GHSA-74fv-pcxw-cvhx
References
More Ichitaro 2023 Ichitaro vulnerabilities
- TI-2014-06032 Unspecified vulnerability in JustSystems Ichitaro 2008 through 2011; Ichitaro Government… CVSS 2.0HIGH 10.0
- TI-2013-03186 Unspecified vulnerability in JustSystems Ichitaro 2006 through 2013; Ichitaro Pro through… CVSS 2.0HIGH 10.0
- TI-2011-01171 JustSystems Ichitaro 2005 through 2011, Ichitaro Government 6, Ichitaro Government 2006… CVSS 2.0HIGH 9.3
- TI-2010-03721 Unspecified vulnerability in JustSystems Ichitaro and Ichitaro Government allows remote… CVSS 2.0HIGH 9.3
- TI-2010-03720 Unspecified vulnerability in JustSystems Ichitaro and Ichitaro Government allows remote… CVSS 2.0HIGH 9.3
- TI-2010-02064 Unspecified vulnerability in JustSystems Ichitaro 2004 through 2009, Ichitaro Government… CVSS 2.0HIGH 9.3
Sources
- CVE-2017-2789 · CVE Program
- CVE-2017-2789 · NVD
- FIRST EPSS
- GHSA-74fv-pcxw-cvhx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences