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Gentoo Linux Security Advisory GLSA 201309-01 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: Cyrus-SASL: Denial of Service |
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Date: September 01, 2013 |
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Bugs: #476764 |
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ID: 201309-01 |
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Synopsis |
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======== |
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|
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A NULL pointer dereference in Cyrus-SASL may allow remote attackers to |
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cause a Denial of Service condition. |
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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 < 2.1.26-r3 >= 2.1.26-r3 |
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|
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Description |
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=========== |
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|
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In the GNU C Library (glibc) from version 2.17 onwards, the crypt() |
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function call can return NULL when the salt violates specifications or |
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the system is in FIPS-140 mode and a DES or MD5 hashed password is |
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passed. When Cyrus-SASL's authentication mechanisms call crypt(), a |
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NULL may be returned. |
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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 trigger this vulnerability to cause a Denial of |
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Service condition. |
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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-2.1.26-r3" |
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|
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References |
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========== |
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[ 1 ] CVE-2013-4122 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4122 |
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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-201309-01.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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|
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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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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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