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[ GLSA 200603-05 ] zoo: Stack-based buffer overflow
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GLSA
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Joined: 12 May 2004
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PostPosted: Mon Mar 06, 2006 10:26 pm    Post subject: [ GLSA 200603-05 ] zoo: Stack-based buffer overflow Reply with quote

Gentoo Linux Security Advisory

Title: zoo: Stack-based buffer overflow (GLSA 200603-05)
Severity: normal
Exploitable: remote
Date: March 06, 2006
Bug(s): #123782
ID: 200603-05

Synopsis

A stack-based buffer overflow in zoo may be exploited to execute arbitrary code through malicious ZOO archives.

Background

zoo is a file archiving utility for maintaining collections of files, written by Rahul Dhesi.

Affected Packages

Package: app-arch/zoo
Vulnerable: < 2.10-r1
Unaffected: >= 2.10-r1
Architectures: All supported architectures


Description

Jean-Sebastien Guay-Leroux discovered a boundary error in the fullpath() function in misc.c when processing overly long file and directory names in ZOO archives.

Impact

An attacker could craft a malicious ZOO archive and entice someone to open it using zoo. This would trigger a stack-based buffer overflow and potentially allow execution of arbitrary code with the rights of the victim user.

Workaround

There is no known workaround at this time.

Resolution

All zoo users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/zoo-2.10-r1"


References

CVE-2006-0855
Original Advisory


Last edited by GLSA on Sun May 07, 2006 5:00 pm; edited 1 time in total
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