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Gentoo Linux Security Advisory GLSA 200503-29 |
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http://security.gentoo.org/ |
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Severity: Low |
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Title: GnuPG: OpenPGP protocol attack |
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Date: March 24, 2005 |
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Bugs: #85547 |
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ID: 200503-29 |
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Synopsis |
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======== |
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|
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Automated systems using GnuPG may leak plaintext portions of an |
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encrypted message. |
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Background |
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========== |
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|
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GnuPG is complete and free replacement for PGP, a tool for secure |
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communication and data storage. |
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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 app-crypt/gnupg < 1.4.1 >= 1.4.1 |
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Description |
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=========== |
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|
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A flaw has been identified in an integrity checking mechanism of the |
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OpenPGP protocol. |
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Impact |
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====== |
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|
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An automated system using GnuPG that allows an attacker to repeatedly |
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discover the outcome of an integrity check (perhaps by observing the |
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time required to return a response, or via overly verbose error |
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messages) could theoretically reveal a small portion of plaintext. |
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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 GnuPG users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-crypt/gnupg-1.4.1" |
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References |
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========== |
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[ 1 ] CERT VU#303094 |
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http://www.kb.cert.org/vuls/id/303094 |
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[ 2 ] CAN-2005-0366 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0366 |
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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-200503-29.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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http://bugs.gentoo.org. |
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License |
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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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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/2.0 |
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