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zip: Path name buffer overflow


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200411-16 / zip
Release Date November 09, 2004
Latest Revision May 22, 2006: 02
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-arch/zip <= 2.3-r3 >= 2.3-r4 All supported architectures

Related bugreports: #70227


zip contains a buffer overflow when creating a ZIP archive of files with very long path names. This could lead to the execution of arbitrary code.

2.  Impact Information


zip is a compression and file packaging utility.


zip does not check the resulting path length when doing recursive folder compression.


An attacker could exploit this by enticing another user or web application to create an archive including a specially-crafted path name, potentially resulting in the execution of arbitrary code with the permissions of the user running zip.

3.  Resolution Information


There is no known workaround at this time.


All zip users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/zip-2.3-r4"

4.  References


Page updated November 09, 2004

Summary: This is a Gentoo Linux Security Advisory

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