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Gentoo Linux Security Advisory GLSA 201110-15 |
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http://security.gentoo.org/ |
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|
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Severity: Normal |
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Title: GnuPG: User-assisted execution of arbitrary code |
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Date: October 22, 2011 |
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Bugs: #329583 |
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ID: 201110-15 |
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|
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Synopsis |
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======== |
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|
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The GPGSM utility included in GnuPG contains a use-after-free |
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vulnerability that may allow an unauthenticated remote attacker to |
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execute arbitrary code. |
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|
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Background |
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========== |
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|
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The GNU Privacy Guard, GnuPG, is a free replacement for the PGP suite |
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of cryptographic software. The GPGSM utility in GnuPG is responsible |
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for processing X.509 certificates, signatures and encryption as well as |
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S/MIME messages. |
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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 app-crypt/gnupg < 2.0.16-r1 >= 2.0.16-r1 |
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< 2.0 |
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|
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Description |
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=========== |
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|
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The GPGSM utility in GnuPG contains a use-after-free vulnerability that |
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may be exploited when importing a crafted X.509 certificate explicitly |
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or during the signature verification process. |
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|
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Impact |
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====== |
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|
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An unauthenticated remote attacker may execute arbitrary code with the |
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privileges of the user running GnuPG by enticing them to import a |
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crafted certificate. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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|
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All GnuPG 2.x users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=app-crypt/gnupg-2.0.16-r1" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2010-2547 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2010-2547 |
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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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|
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http://security.gentoo.org/glsa/glsa-201110-15.xml |
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|
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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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https://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 2011 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/2.5 |