Several vulnerabilities were discovered in recent versions of Qt, a commonly used graphic widget set, used in KDE for example. The first problem allows an attacker to execute arbitrary code, while the other two only seem to pose a denial of service danger. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities:
Chris Evans has discovered a heap-based overflow when handling 8-bit RLE encoded BMP files.
Marcus Meissner has discovered a crash condition in the XPM handling code, which is not yet fixed in Qt 3.3.
Marcus Meissner has discovered a crash condition in the GIF handling code, which is not yet fixed in Qt 3.3.
For the stable distribution (woody) these problems have been fixed in version 3.0.3-20020329-1woody2.
For the unstable distribution (sid) these problems have been fixed in version 3.3.3-4 of qt-x11-free.
We recommend that you upgrade your qt packages.
MD5 checksums of the listed files are available in the original advisory.