Bug#394192: Security: integer overflow in pixmap handling (CVE-2006-4811)
Package: libqt4-core
Version: all
Severity: critical
Tags: security, fixed-upstream
CVE-2006-4811
A critical integer overflow was found in QT, possibly allowing remote code
execution, for example via manipulated images loaded by apps like Konqueror
See Red Hat Advisory:
https://rhn.redhat.com/errata/RHSA-2006-0720.html
"
An integer overflow flaw was found in the way Qt handled pixmap images.
The KDE khtml library uses Qt in such a way that untrusted parameters could
be passed to Qt, triggering the overflow. An attacker could for example
create a malicious web page that when viewed by a victim in the Konqueror
browser would cause Konqueror to crash or possibly execute arbitrary code
with the privileges of the victim. (CVE-2006-4811)
"
A demo exploit, leading to a crash at an up-to-date sid box, is provided at
http://bugzilla.redhat.com/bugzilla/attachment.cgi?id=138488
Patch
http://bugzilla.redhat.com/bugzilla/attachment.cgi?id=138489
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