[ GLSA 200703-24 ] mgv: Stack overflow in included gv code

[GLSA]

Gentoo Linux Security Advisory

Title: mgv: Stack overflow in included gv code (GLSA 200703-24)
Severity: normal
Exploitable: remote
Date: March 26, 2007
Bug(s): #154645
ID: 200703-24

Synopsis

mgv improperly handles user-supplied data possibly allowing for the execution of arbitrary code.

Background

mgv is a Postscript viewer with a Motif interface, based on Ghostview and GNU gv.

Affected Packages

Package: app-text/mgv
Vulnerable: <= 3.1.5
Architectures: All supported architectures


Description

mgv includes code from gv that does not properly boundary check user-supplied data before copying it into process buffers.

Impact

An attacker could entice a user to open a specially crafted Postscript document with mgv and possibly execute arbitrary code with the rights of the user running mgv.

Workaround

There is no known workaround at this time.

Resolution

mgv is currently unmaintained, and the mgv website no longer exists. As such, the mgv package has been masked in Portage. We recommend that users select an alternate Postscript viewer such as ghostview or GSview, and unmerge mgv: