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Gentoo Linux Security Advisory GLSA 200508-04 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Netpbm: Arbitrary code execution in pstopnm |
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Date: August 05, 2005 |
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Bugs: #100398 |
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ID: 200508-04 |
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Synopsis |
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======== |
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|
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The pstopnm utility, part of the Netpbm tools, contains a vulnerability |
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which can potentially result in the execution of arbitrary code. |
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|
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Background |
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========== |
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|
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Netpbm is a package of 220 graphics programs and a programming |
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libraries, including pstopnm. pstopnm is a tool which converts |
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PostScript files to PNM image files. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 media-libs/netpbm < 10.28 >= 10.28 |
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|
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Description |
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=========== |
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|
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Max Vozeler reported that pstopnm calls the GhostScript interpreter on |
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untrusted PostScript files without specifying the -dSAFER option, to |
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convert a PostScript file into a PBM, PGM, or PNM file. |
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|
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Impact |
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====== |
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|
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An attacker could craft a malicious PostScript file and entice a user |
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to run pstopnm on it, resulting in the execution of arbitrary commands |
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with the permissions of the user running pstopnm. |
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|
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All Netpbm users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=media-libs/netpbm-10.28" |
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|
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References |
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========== |
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|
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[ 1 ] Secunia Advisory SA16184 |
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http://secunia.com/advisories/16184/ |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-200508-04.xml |
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2005 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.0 |
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