zgv: Multiple buffer overflows

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200411-12 / zgv
Release Date	November 07, 2004
Latest Revision	May 22, 2006: 02
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-gfx/zgv	< 5.8	>= 5.8	All supported architectures

Related bugreports: #69150

Synopsis

zgv contains multiple buffer overflows that can potentially lead to the execution of arbitrary code.

2. Impact Information

Background

zgv is a console image viewer based on svgalib.

Description

Multiple arithmetic overflows have been detected in the image processing code of zgv.

Impact

An attacker could entice a user to open a specially-crafted image file, potentially resulting in execution of arbitrary code with the rights of the user running zgv.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All zgv users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-gfx/zgv-5.8"

4. References

Page updated November 07, 2004

Summary: This is a Gentoo Linux Security Advisory

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