GLSA 200710-28: Qt: Buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	Qt: Buffer overflow
Date:	10/25/2007
Bugs:	#192472
ID:	200710-28

Synopsis

An off-by-one vulnerability has been discovered in Qt, possibly resulting in the execution of arbitrary code.

Background

Qt is a cross-platform GUI framework, which is used e.g. by KDE.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
x11-libs/qt	< 3.3.8-r4	>= 3.3.8-r4	All supported architectures

Description

Dirk Mueller from the KDE development team discovered a boundary error in file qutfcodec.cpp when processing Unicode strings.

Impact

A remote attacker could send a specially crafted Unicode string to a vulnerable Qt application, possibly resulting in the remote execution of arbitrary code with the privileges of the user running the application. Note that the boundary error is present but reported to be not exploitable in 4.x series.

Workaround

There is no known workaround at this time.

Resolution

All Qt 3.x users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=x11-libs/qt-3.3.8-r4"

References

CVE-2007-4137

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200710-28.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.