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[ GLSA 200703-24 ] mgv: Stack overflow in included gv code
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GLSA
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PostPosted: Mon Mar 26, 2007 8:26 pm    Post subject: [ GLSA 200703-24 ] mgv: Stack overflow in included gv code Reply with quote

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:
Code:
# emerge --unmerge "app-text/mgv"


References

CVE-2006-5864
GLSA 200611-20


Last edited by GLSA on Tue May 27, 2014 4:24 am; edited 3 times in total
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