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Gentoo Linux Security Advisory GLSA 200907-09 |
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http://security.gentoo.org/ |
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Severity: High |
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Title: Cyrus-SASL: Execution of arbitrary code |
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Date: July 12, 2009 |
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Bugs: #270261 |
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ID: 200907-09 |
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Synopsis |
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======== |
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|
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A buffer overflow in Cyrus-SASL might allow for the execution of |
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arbitrary code in applications or daemons that authenticate using SASL. |
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Background |
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========== |
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|
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Cyrus-SASL is an implementation of the Simple Authentication and |
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Security Layer. |
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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 dev-libs/cyrus-sasl < 2.1.23 >= 2.1.23 |
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|
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Description |
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=========== |
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|
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James Ralston reported that in certain situations, Cyrus-SASL does not |
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properly terminate strings which can result in buffer overflows when |
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performing Base64 encoding. |
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|
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Impact |
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====== |
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|
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A remote unauthenticated user might send specially crafted packets to a |
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daemon using Cyrus-SASL, possibly resulting in the execution of |
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arbitrary code with the privileges of the user running the daemon or a |
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Denial of Service. |
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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 Cyrus-SASL users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.23" |
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|
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References |
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========== |
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[ 1 ] CVE-2009-0688 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0688 |
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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-200907-09.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 2009 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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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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