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Advisories, October 26, 2006

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rPath Linux

rPath Security Advisory: 2006-0195-2
Published: 2006-10-18
Updated: 2006-10-26 Integer overflow now fixed in Qt library Products: rPath Linux 1
Rating: Major
Exposure Level Classification: Indirect User Deterministic Unauthorized Access
Updated Versions:



Previous versions of the qt-x11-free package include Qt libraries contain an integer overflow flaw that causes them not to properly bound pixmap image data. This may enable a user-complicit denial of service attack (application crash), or possibly unauthorized access via arbitrary code execution, in applications which use vulnerable versions of the Qt libraries.

Previous versions of the KDE khtml library use Qt in a way that allows unchecked pixmap image input to be provided to Qt, triggering this integer overflow flaw in older versions of the Qt library.

25 October 2006 Update: The initial announcement of this update included only the KDE khtml library; this update adds the fix for the Qt library itself.

rPath Security Advisory: 2006-0198-1
Published: 2006-10-26
Products: rPath Linux 1
Rating: Minor
Exposure Level Classification: Indirect User Deterministic Unauthorized Access
Updated Versions:



In previous versions of the screen package, the screen program had a bug which is known to make screen vulnerable to a minor denial of service attack in which the screen program would crash if presented with particular output. It is possible that this attack could also allow a user-complicit attacker to assume the privileges of the complicit user. The screen program is not setuid in rPath Linux, so any attack is limited to the complicit user.

Slackware Linux

[slackware-security] qt (SSA:2006-298-01)

New qt packages are available for Slackware 10.0, 10.1, 10.2, and 11.0 to fix a possible security issue.

More details about this issue may be found in the Common Vulnerabilities and Exposures (CVE) database:

Trolltech has put out a press release which may be found here:

Here are the details from the Slackware 11.0 ChangeLog:
patches/packages/qt-3.3.7-i486-1_slack11.0.tgz: Upgraded to qt-x11-free-3.3.7.
This fixes an issue with Qt's handling of pixmap images that causes Qt linked applications to crash if a specially crafted malicious image is loaded. Inspection of the code in question makes it seem unlikely that this could lead to more serious implications (such as arbitrary code execution), but it is recommended that users upgrade to the new Qt package.
For more information, see:
(* Security fix *)

Where to find the new packages:

HINT: Getting slow download speeds from ftp Give a try. This is another primary FTP site for Slackware that can be considerably faster than downloading from

Thanks to the friendly folks at the OSU Open Source Lab ( for donating additional FTP and rsync hosting to the Slackware project! :-)

Also see the "Get Slack" section on for additional mirror sites near you.

Updated package for Slackware 10.0:

Updated package for Slackware 10.1:

Updated package for Slackware 10.2:

Updated packages for Slackware 11.0:

MD5 signatures:

Slackware 10.0 package:
a1c994922a521124e45090f59803f943 qt-3.3.3-i486-2_slack10.0.tgz

Slackware 10.1 package:
0b0fbabc4d3ebc3f73d51c60888327da qt-3.3.3-i486-4_slack10.1.tgz

Slackware 10.2 package:
32a47658e1d1905f75b6dd922cddece6 qt-3.3.4-i486-3_slack10.2.tgz

Slackware 11.0 packages:
5b73117bbad94a0279535ecffc56ff3b qca-tls-1.0-i486-3_slack11.0.tgz
8640fdfa927f2b683835b004b0fc25d4 qt-3.3.7-i486-1_slack11.0.tgz

Installation instructions:

Upgrade the package as root:
# upgradepkg qt-3.3.7-i486-1_slack11.0.tgz

If you are running Slackware 11.0, you will also need to upgrade the qca-tls package to put the plugin in the new qt-3.3.7 plugin directory. Earlier versions of Slackware do not include the qca-tls package. # upgradepkg qca-tls-1.0-i486-3_slack11.0.tgz


Slackware Linux Security Team