CVE-2017-2790 — HIGH (8.8) — White Hats Nepal

Vulnerability Description

When processing a record type of 0x3c from a Workbook stream from an Excel file (.xls), JustSystems Ichitaro Office trusts that the size is greater than zero, subtracts one from the length, and uses this result as the size for a memcpy. This results in a heap-based buffer overflow and can lead to code execution under the context of the application.

CVSS Score

8.8

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Justsystems	Ichitaro	All versions

Related Weaknesses (CWE)

CWE-119

References

FAQ

What is CVE-2017-2790?

CVE-2017-2790 is a vulnerability with a CVSS score of 8.8 (HIGH). When processing a record type of 0x3c from a Workbook stream from an Excel file (.xls), JustSystems Ichitaro Office trusts that the size is greater than zero, subtracts one from the length, and uses t...

How severe is CVE-2017-2790?

CVE-2017-2790 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-2790?

Check the references section above for vendor advisories and patch information. Affected products include: Justsystems Ichitaro.