[ GLSA 200904-07 ] Xpdf: Untrusted search path

[GLSA]

Gentoo Linux Security Advisory

Title: Xpdf: Untrusted search path (GLSA 200904-07)
Severity: normal
Exploitable: local
Date: April 07, 2009
Bug(s): #242930
ID: 200904-07

Synopsis


A vulnerability in Xpdf might allow local attackers to execute arbitrary
code.


Background


Xpdf is a PDF file viewer that runs under the X Window System.


Affected Packages

Package: app-text/xpdf
Vulnerable: < 3.02-r2
Unaffected: >= 3.02-r2
Architectures: All supported architectures


Description


Erik Wallin reported that Gentoo's Xpdf attempts to read the "xpdfrc"
file from the current working directory if it cannot find a ".xpdfrc"
file in the user's home directory. This is caused by a missing
definition of the SYSTEM_XPDFRC macro when compiling a repackaged
version of Xpdf.


Impact


A local attacker could entice a user to run "xpdf" from a directory
containing a specially crafted "xpdfrc" file, resulting in the
execution of arbitrary code when attempting to, e.g., print a file.


Workaround


Do not run Xpdf from untrusted working directories.


Resolution


All Xpdf users should upgrade to the latest version: