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MIME-tools: Virus detection evasion


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200411-06 / MIME-tools
Release Date November 02, 2004
Latest Revision May 22, 2006: 02
Impact low
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
dev-perl/MIME-tools < 5.415 >= 5.415 All supported architectures

Related bugreports: #69181


MIME-tools doesn't handle empty MIME boundaries correctly. This may prevent some virus-scanning programs which use MIME-tools from detecting certain viruses.

2.  Impact Information


MIME-tools is a Perl module containing functions to handle MIME attachments.


MIME-tools doesn't correctly parse attachment boundaries with an empty name (boundary="").


An attacker could send a carefully crafted email and evade detection on some email virus-scanning programs using MIME-tools for attachment decoding.

3.  Resolution Information


There is no known workaround at this time.


All MIME-tools users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-perl/MIME-tools-5.415"

4.  References


Page updated November 02, 2004

Summary: This is a Gentoo Linux Security Advisory

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