Qt: Untrusted library search path

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200503-01 / qt
Release Date	March 01, 2005
Latest Revision	May 22, 2006: 02
Impact	normal
Exploitable	local

Package	Vulnerable versions	Unaffected versions	Architecture(s)
x11-libs/qt	< 3.3.4-r2	>= 3.3.4-r2	All supported architectures

Related bugreports: #75181

Synopsis

Qt may load shared libraries from an untrusted, world-writable directory, resulting in the execution of arbitrary code.

2. Impact Information

Background

Qt is a cross-platform GUI toolkit used by KDE.

Description

Tavis Ormandy of the Gentoo Linux Security Audit Team has discovered that Qt searches for shared libraries in an untrusted, world-writable directory.

Impact

A local attacker could create a malicious shared object that would be loaded by Qt, resulting in the execution of arbitrary code with the privileges of the Qt application.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Qt users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-libs/qt-3.3.4-r2"

4. References

CVE-2005-0627

Updated March 01, 2005

Summary: This is a Gentoo Linux Security Advisory

Security Team
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