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Gentoo Linux Security Advisory GLSA 200803-28 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: OpenLDAP: Denial of Service vulnerabilities |
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Date: March 19, 2008 |
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Bugs: #197446, #209677 |
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ID: 200803-28 |
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Synopsis |
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======== |
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|
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Multiple Denial of Service vulnerabilities have been reported in |
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OpenLDAP. |
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|
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Background |
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========== |
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|
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OpenLDAP Software is an open source implementation of the Lightweight |
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Directory Access Protocol. |
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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 net-nds/openldap < 2.3.41 >= 2.3.41 |
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Description |
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=========== |
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|
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The following errors have been discovered in OpenLDAP: |
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|
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* Tony Blake discovered an error which exists within the |
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normalisation of "objectClasses" (CVE-2007-5707). |
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|
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* Thomas Sesselmann reported that, when running as a proxy-caching |
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server the "add_filter_attrs()" function in |
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servers/slapd/overlay/pcache.c does not correctly NULL terminate |
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"new_attrs" (CVE-2007-5708). |
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|
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* A double-free bug exists in attrs_free() in the file |
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servers/slapd/back-bdb/modrdn.c, which was discovered by Jonathan |
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Clarke (CVE-2008-0658). |
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|
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Impact |
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====== |
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|
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A remote attacker can cause a Denial of Serivce by sending a malformed |
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"objectClasses" attribute, and via unknown vectors that prevent the |
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"new_attrs" array from being NULL terminated, and via a modrdn |
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operation with a NOOP (LDAP_X_NO_OPERATION) control. |
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|
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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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|
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Resolution |
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========== |
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All OpenLDAP users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-nds/openldap-2.3.41" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2007-5707 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5707 |
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[ 2 ] CVE-2007-5708 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5708 |
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[ 3 ] CVE-2008-0658 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0658 |
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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-200803-28.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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|
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License |
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======= |
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Copyright 2008 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/2.5 |
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