XLI, Xloadimage: Buffer overflow

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200510-26 / xli xloadimage
Release Date	October 30, 2005
Latest Revision	October 30, 2005: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-gfx/xli	< 1.17.0-r2	>= 1.17.0-r2	All supported architectures
media-gfx/xloadimage	< 4.1-r4	>= 4.1-r4	All supported architectures

Related bugreports: #108365

Synopsis

XLI and Xloadimage contain a vulnerability which could potentially result in the execution of arbitrary code.

2. Impact Information

Background

XLI and Xloadimage are X11 image manipulation utilities.

Description

When XLI or Xloadimage process an image, they create a new image object to contain the new image, copying the title from the old image to the newly created image. Ariel Berkman reported that the 'zoom', 'reduce', and 'rotate' functions use a fixed length buffer to contain the new title, which could be overwritten by the NIFF or XPM image processors.

Impact

A malicious user could craft a malicious XPM or NIFF file and entice a user to view it using XLI, or manipulate it using Xloadimage, potentially resulting in the execution of arbitrary code with the permissions of the user running XLI or Xloadimage.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All XLI users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/xli-1.17.0-r2"

All Xloadimage users should upgrade to the latest version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/xloadimage-4.1-r4"

4. References

CAN-2005-3178

Page updated October 30, 2005

Summary: This is a Gentoo Linux Security Advisory

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