GLSA Bodhisattva
Joined: 25 Feb 2003 Posts: 3829 Location: Essen, Germany
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Posted: Tue Sep 21, 2004 9:12 pm Post subject: [ GLSA 200409-28 ] GTK+ 2, gdk-pixbuf: Multiple image decodi |
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Gentoo Linux Security Advisory
Title: GTK+ 2, gdk-pixbuf: Multiple image decoding vulnerabilities (GLSA 200409-28)
Severity: normal
Exploitable: remote
Date: September 21, 2004
Bug(s): #64230
ID: 200409-28
Synopsis
The GdkPixbuf library, which is also included in GTK+ 2, contains several vulnerabilities that could lead to a Denial of Service or the execution of arbitrary code.
Background
GTK+ (GIMP Toolkit +) is a toolkit for creating graphical user interfaces. The GdkPixbuf library provides facilities for image handling. It is available as a standalone library as well as shipped with GTK+ 2.
Affected Packages
Package: x11-libs/gtk+
Vulnerable: < 2.4.9-r1
Unaffected: >= 2.4.9-r1
Unaffected: < 2.0.0
Architectures: All supported architectures
Package: media-libs/gdk-pixbuf
Vulnerable: < 0.22.0-r3
Unaffected: >= 0.22.0-r3
Architectures: All supported architectures
Description
A vulnerability has been discovered in the BMP image preprocessor (CAN-2004-0753). Furthermore, Chris Evans found a possible integer overflow in the pixbuf_create_from_xpm() function, resulting in a heap overflow (CAN-2004-0782). He also found a potential stack-based buffer overflow in the xpm_extract_color() function (CAN-2004-0783). A possible integer overflow has also been found in the ICO decoder.
Impact
With a specially crafted BMP image an attacker could cause an affected application to enter an infinite loop when that image is being processed. Also, by making use of specially crafted XPM or ICO images an attacker could trigger the overflows, which potentially allows the execution of arbitrary code.
Workaround
There is no known workaround at this time.
Resolution
All GTK+ 2 users should upgrade to the latest version: Code: | # emerge sync
# emerge -pv ">=x11-libs/gtk+-2.4.9-r1"
# emerge ">=x11-libs/gtk+-2.4.9-r1" | All GdkPixbuf users should upgrade to the latest version: Code: | # emerge sync
# emerge -pv ">=media-libs/gdk-pixbuf-0.22.0-r3"
# emerge ">=media-libs/gdk-pixbuf-0.22.0-r3" |
References
CAN-2004-0753
CAN-2004-0782
CAN-2004-0783
CAN-2004-0788
GNOME Bug 150601
Last edited by GLSA on Sun May 07, 2006 4:52 pm; edited 1 time in total |
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