[ GLSA 200408-10 ] gv: Exploitable Buffer Overflow

[GLSA]

Gentoo Linux Security Advisory

Title: gv: Exploitable Buffer Overflow (GLSA 200408-10)
Severity: normal
Exploitable: remote
Date: August 12, 2004
Bug(s): #59385
ID: 200408-10

Synopsis


gv contains an exploitable buffer overflow that allows an attacker to
execute arbitrary code.


Background


gv is a PostScript and PDF viewer for X which provides a user interface for
the ghostscript interpreter.


Affected Packages

Package: app-text/gv
Vulnerable: <= 3.5.8-r3
Unaffected: >= 3.5.8-r4
Architectures: All supported architectures


Description


gv contains a buffer overflow vulnerability where an unsafe sscanf() call
is used to interpret PDF and PostScript files.


Impact


By enticing a user to view a malformed PDF or PostScript file an attacker
could execute arbitrary code with the permissions of the user running gv.


Workaround


There is no known workaround at this time. All users are encouraged to
upgrade to the latest available version of gv.


Resolution


All gv users should upgrade to the latest version: