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Gentoo Linux Security Advisory GLSA 200711-33 |
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http://security.gentoo.org/ |
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|
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Severity: Low |
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Title: nss_ldap: Information disclosure |
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Date: November 25, 2007 |
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Bugs: #198390 |
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ID: 200711-33 |
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|
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Synopsis |
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======== |
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|
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A race condition might lead to theft of user credentials or information |
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disclosure in services using nss_ldap. |
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|
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Background |
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========== |
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|
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nss_ldap is a Name Service Switch module which allows 'passwd', 'group' |
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and 'host' database information to be pulled from LDAP. |
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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 sys-auth/nss_ldap < 258 >= 258 |
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|
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Description |
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=========== |
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|
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Josh Burley reported that nss_ldap does not properly handle the LDAP |
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connections due to a race condition that can be triggered by |
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multi-threaded applications using nss_ldap, which might lead to |
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requested data being returned to a wrong process. |
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|
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Impact |
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====== |
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|
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Remote attackers could exploit this race condition by sending queries |
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to a vulnerable server using nss_ldap, possibly leading to theft of |
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user credentials or information disclosure (e.g. Dovecot returning |
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wrong mailbox contents). |
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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 nss_ldap 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 ">=sys-auth/nss_ldap-258" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2007-5794 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5794 |
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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-200711-33.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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http://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 2007 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 |
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