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CVE-2005-3381

UnknownEPSS 2.13%

Last modified

CVE-2005-3381 is a vulnerability of currently unknown severity. Multiple interpretation error in Ukrainian National Antivirus (UNA) 1.83.2.16 with kernel 265 allows remote attackers to bypass virus scanning via a file such as BAT, HTML, and EML with an "MZ" magic byte sequence which is normally associated with EXE, which causes the file to be treated as a safe type that could still be executed as a dangerous file type by applications on the end system, as demonstrated by a "triple headed" program that contains EXE, EML, and HTML content, aka the "magic byte bug.". EPSS estimates a 2.13% chance of exploitation in the next 30 days.

Description

Multiple interpretation error in Ukrainian National Antivirus (UNA) 1.83.2.16 with kernel 265 allows remote attackers to bypass virus scanning via a file such as BAT, HTML, and EML with an "MZ" magic byte sequence which is normally associated with EXE, which causes the file to be treated as a safe type that could still be executed as a dangerous file type by applications on the end system, as demonstrated by a "triple headed" program that contains EXE, EML, and HTML content, aka the "magic byte bug."

Metrics

EPSS Probability
2.13%

79.6th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
Ukranian National AntivirusUna1.83.2.16

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2005-3381?
Multiple interpretation error in Ukrainian National Antivirus (UNA) 1.83.2.16 with kernel 265 allows remote attackers to bypass virus scanning via a file such as BAT, HTML, and EML with an "MZ" magic byte sequence which is normally associated with EXE, which causes the file to be treated as a safe type that could still be executed as a dangerous file type by applications on the end system, as demonstrated by a "triple headed" program that contains EXE, EML, and HTML content, aka the "magic byte bug."
How severe is CVE-2005-3381?
Severity scoring for CVE-2005-3381 is pending analysis. The EPSS model estimates a 2.13% probability of exploitation in the next 30 days.
How do I fix CVE-2005-3381?
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-2005-3381?

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Source: NVD / NIST