GLSA 200509-18: Qt: Buffer overflow in the included zlib library

http://security.gentoo.org/

Severity:	normal
Title:	Qt: Buffer overflow in the included zlib library
Date:	09/26/2005
Bugs:	#105695
ID:	200509-18

Synopsis

Qt is vulnerable to a buffer overflow which could potentially lead to the execution of arbitrary code.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
x11-libs/qt	< 3.3.4-r8	>= 3.3.4-r8	All supported architectures

Description

Qt links to a bundled vulnerable version of zlib when emerged with the zlib USE-flag disabled. This may lead to a buffer overflow.

Impact

By creating a specially crafted compressed data stream, attackers can overwrite data structures for applications that use Qt, resulting in a Denial of Service or potentially arbitrary code execution.

Workaround

Emerge Qt with the zlib USE-flag enabled.

Resolution

All Qt users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-libs/qt-3.3.4-r8"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200509-18.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.