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pstotext: Remote execution of arbitrary code


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200507-29 / pstotext
Release Date July 31, 2005
Latest Revision August 11, 2005: 02
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
app-text/pstotext < 1.8g-r1 >= 1.8g-r1 All supported architectures

Related bugreports: #100245


pstotext contains a vulnerability which can potentially result in the execution of arbitrary code.

2.  Impact Information


pstotext is a program that works with GhostScript to extract plain text from PostScript and PDF files.


Max Vozeler reported that pstotext calls the GhostScript interpreter on untrusted PostScript files without specifying the -dSAFER option.


An attacker could craft a malicious PostScript file and entice a user to run pstotext on it, resulting in the execution of arbitrary commands with the permissions of the user running pstotext.

3.  Resolution Information


There is no known workaround at this time.


All pstotext users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-text/pstotext-1.8g-r1"

4.  References


Page updated July 31, 2005

Summary: This is a Gentoo Linux Security Advisory

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