zoo: Stack-based buffer overflow — GLSA 200603-05

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

Affected Packages

app-arch/zoo on all architectures
Affected versions < 2.10-r1
Unaffected versions >= 2.10-r1

Background

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

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:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-arch/zoo-2.10-r1"

References

Release Date
March 06, 2006

Latest Revision
March 06, 2006: 01

Severity
normal

Exploitable
remote

Bugzilla entries