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CVE-2017-2790

UnknownEPSS 1.89%

Last modified

CVE-2017-2790 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.89% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability
1.89%

76.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
JustsystemsIchitaroAll versions

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2017-2790?
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.
How severe is CVE-2017-2790?
Severity scoring for CVE-2017-2790 is pending analysis. The EPSS model estimates a 1.89% probability of exploitation in the next 30 days.
How do I fix CVE-2017-2790?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2017-2790?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST