TITLE:
KDE kjs UTF-8 Encoded URI Buffer Overflow Vulnerability

SECUNIA ADVISORY ID:
SA18500

VERIFY ADVISORY:
http://secunia.com/advisories/18500/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
KDE 3.x
http://secunia.com/product/219/

DESCRIPTION:
Maksim Orlovich has reported a vulnerability in KDE kjs, which can be
exploited by malicious people to cause a DoS (Denial of Service) or to
compromise a user's system.

The vulnerability is caused due to a boundary error in kjs in the
decoding of UTF-8 encoded URI sequences. This can be exploited to
cause a heap-based buffer overflow by supplying specially crafted
JavaScript code via an application using the affected JavaScript
interpreter engine (e.g. Konqueror).

Successful exploitation allows execution of arbitrary code.

The vulnerability has been reported in versions 3.2.0 through 3.5.0.

SOLUTION:
Apply patches.

KDE 3.4.0 - 3.5.0:
ftp://ftp.kde.org/pub/kde/security_patches/post-3.4.3-kdelibs-kjs.diff
ecc0ec13ce3b06e94e35aa8e937e02bf

KDE 3.2.0 - 3.3.2:
ftp://ftp.kde.org/pub/kde/security_patches/post-3.2.3-kdelibs-kjs.diff
9bca9b44ca2d84e3b2f85ffb5d30e047

PROVIDED AND/OR DISCOVERED BY:
Maksim Orlovich

ORIGINAL ADVISORY:
http://www.kde.org/info/security/advisory-20060119-1.txt

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