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CVE-2005-2471

Status Candidate

Overview

pstopnm in netpbm does not properly use the "-dSAFER" option when calling Ghostscript to convert a PostScript file into a (1) PBM, (2) PGM, or (3) PNM file, which allows external user-assisted attackers to execute arbitrary commands.

Related Files

Debian Linux Security Advisory 1021-1
Posted Apr 1, 2006
Authored by Debian | Site debian.org

Debian Security Advisory DSA 1021-1 - Max Vozeler from the Debian Audit Project discovered that pstopnm, a converter from Postscript to the PBM, PGM and PNM formats, launches Ghostscript in an insecure manner, which might lead to the execution of arbitrary shell commands, when converting specially crafted Postscript files.

tags | advisory, arbitrary, shell
systems | linux, debian
advisories | CVE-2005-2471
SHA-256 | c805afd688bd7387640c3694a50b68d7630757d17cd7512253e04e23bcfd57c8
Ubuntu Security Notice 164-1
Posted Aug 12, 2005
Authored by Ubuntu | Site ubuntu.com

Ubuntu Security Notice USN-164-1 - Max Vozeler discovered that the the pstopnm conversion tool did not use the -dSAFER option when calling ghostscript. This option prohibits file operations and calling commands within PostScript code. This flaw could be exploited by an attacker to execute arbitrary code if he tricked an user (or an automatic server) into processing a specially crafted PostScript document with pstopnm.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2005-2471
SHA-256 | e7bee8ebff81a32f1d1b893ba21274a04bb055f8c81980d772a51a23273a551d
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