Pavuk: Remote buffer overflow

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200406-22 / Pavuk
Release Date	June 30, 2004
Latest Revision	May 22, 2006: 02
Impact	high
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-misc/pavuk	<= 0.9.28-r1	>= 0.9.28-r2	All supported architectures

Related bugreports: No related gentoo bugreports

Synopsis

Pavuk contains a bug potentially allowing an attacker to run arbitrary code.

2. Impact Information

Background

Pavuk is web spider and website mirroring tool.

Description

When Pavuk connects to a web server and the server sends back the HTTP status code 305 (Use Proxy), Pavuk copies data from the HTTP Location header in an unsafe manner.

Impact

An attacker could cause a stack-based buffer overflow which could lead to arbitrary code execution with the rights of the user running Pavuk.

3. Resolution Information

Workaround

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version.

Resolution

All Pavuk users should upgrade to the latest stable version:

Code Listing 3.1: Resolution

# emerge sync

# emerge -pv ">=net-misc/pavuk-0.9.28-r2"
# emerge ">="net-misc/pavuk-0.9.28-r2

4. References

CVE-2004-0456

Page updated June 30, 2004

Summary: This is a Gentoo Linux Security Advisory

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