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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA903] DSA-903-2 unzip

Vulnerability Assessment Details

[DSA903] DSA-903-2 unzip

Vulnerability Assessment Summary
DSA-903-2 unzip

Detailed Explanation for this Vulnerability Assessment

The unzip update in DSA 903 contained a regression so that symbolic
links that are resolved later in a zip archive aren't supported
anymore. This update corrects this behaviour. For completeness,
below please find the original advisory text:
Imran Ghory discovered a race condition in the permissions setting
code in unzip. When decompressing a file in a directory a possible hacker
has access to, unzip could be tricked to set the file permissions to a
different file the user has permissions to.
For the old stable distribution (woody) this problem has been fixed in
version 5.50-1woody5.
For the stable distribution (sarge) this problem has been fixed in
version 5.52-1sarge3.
For the unstable distribution (sid) this problem has been fixed in
version 5.52-6.
We recommend that you upgrade your unzip package.

Solution : http://www.debian.org/security/2005/dsa-903
Network Security Threat Level: High

Networks Security ID: 14450

Vulnerability Assessment Copyright: This script is (C) 2007 Michel Arboi

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