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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200410-31] Archive::Zip: Virus detection evasion

Vulnerability Assessment Details

[GLSA-200410-31] Archive::Zip: Virus detection evasion

Vulnerability Assessment Summary
Archive::Zip: Virus detection evasion

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200410-31
(Archive::Zip: Virus detection evasion)

Archive::Zip can be used by email scanning software (like amavisd-new) to
uncompress attachments before virus scanning. By modifying the uncompressed
size of archived files in the global header of the ZIP file, it is possible
to fool Archive::Zip into thinking some files inside the archive have zero
length.

Impact

A possible hacker could send a carefully crafted ZIP archive containing a virus
file and evade detection on some email virus-scanning software relying on
Archive::Zip for decompression.

Workaround

There is no known workaround at this time.

References:
http://www.idefense.com/application/poi/display?id=153
http://rt.cpan.org/NoAuth/Bug.html?id=8077

Solution:
All Archive::Zip users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-perl/Archive-Zip-1.14"

Network Security Threat Level: Low

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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