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Gentoo Linux Security Advisory GLSA 201310-01 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Perl Module-Signature module: Arbitrary code execution |
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Date: October 04, 2013 |
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Bugs: #472428 |
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ID: 201310-01 |
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Synopsis |
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======== |
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|
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The Module-Signature module for Perl has insufficient path checks, |
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allowing a remote attacker to execute arbitrary Perl code. |
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Background |
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========== |
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|
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The Perl Module::Signature module adds signing capabilities to CPAN |
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modules. |
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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 dev-perl/Module-Signature |
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< 0.720.0 >= 0.720.0 |
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Description |
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=========== |
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|
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The 'cpansign verify' command will automatically download keys and use |
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them to check the signature of CPAN packages via the SIGNATURE file. If |
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an attacker were to replace this (SHA1) with a special unknown cipher |
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(e.g. 'Special') and were to include in the distribution a |
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'Digest/Special.pm', the code in this Perl module would be executed |
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when 'cpansign -verify' is run. |
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|
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Impact |
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====== |
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|
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A remote attacker could possibly execute arbitrary code with the |
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privileges of the process. |
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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 users of the Module-Signature Perl module should upgrade to the |
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latest version: |
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# emerge --sync |
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# emerge --ask --oneshot -v ">=dev-perl/Module-Signature-0.720.0" |
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|
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References |
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========== |
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[ 1 ] CVE-2013-2145 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2145 |
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|
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Availability |
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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-201310-01.xml |
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Concerns? |
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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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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2013 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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http://creativecommons.org/licenses/by-sa/2.5 |
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