GLSA 200510-26: XLI, Xloadimage: Buffer overflow

http://security.gentoo.org/

Severity:	normal
Title:	XLI, Xloadimage: Buffer overflow
Date:	10/30/2005
Bugs:	#108365
ID:	200510-26

Synopsis

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

Background

XLI and Xloadimage are X11 image manipulation utilities.

Affected packages

Package	Vulnerable	Unaffected	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

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.

Workaround

There is no known workaround at this time.

Resolution

All XLI users should upgrade to the latest version:

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

All Xloadimage users should upgrade to the latest version:


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

References

CAN-2005-3178

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200510-26.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.