CVE-2005-3381

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."

5.0

CVSS

Severity: Medium

CVSS 2.0 •

EPSS 1.07% Top 25%

Vendor Advisory securityelf.org

Affected: n/a n/a

References

Link	Tags
http://www.securityfocus.com/bid/15189	vdb entry
http://www.securityelf.org/magicbyte.html
http://www.securityelf.org/magicbyteadv.html	vendor advisory
http://marc.info/?l=bugtraq&m=113026417802703&w=2	mailing list
http://www.securityelf.org/updmagic.html

Frequently Asked Questions

What is the severity of CVE-2005-3381?: CVE-2005-3381 has been scored as a medium severity vulnerability.
How to fix CVE-2005-3381?: To fix CVE-2005-3381, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2005-3381 being actively exploited in the wild?: It is possible that CVE-2005-3381 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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