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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2008.0866 -- [RedHat] Moderate: redhat-ds-base security and bug fix update 11 September 2008 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Red Hat Enterprise IPA Publisher: Red Hat Operating System: Red Hat Enterprise Linux 5 Impact: Denial of Service Access: Remote/Unauthenticated CVE Names: CVE-2008-3283 CVE-2008-2930 Ref: ESB-2008.0836 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2008-0858.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: redhat-ds-base security and bug fix update Advisory ID: RHSA-2008:0858-01 Product: Red Hat Enterprise IPA Advisory URL: https://rhn.redhat.com/errata/RHSA-2008-0858.html Issue date: 2008-09-10 CVE Names: CVE-2008-2930 CVE-2008-3283 ===================================================================== 1. Summary: Updated redhat-ds-base packages are now available that fix security issues and various bugs for Red Hat Enterprise IPA. This update has been rated as having moderate security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat IPA 1 for RHEL 5 Server - i386, x86_64 3. Description: Red Hat Directory Server is an LDAPv3-compliant directory server. Multiple memory leaks were identified in the Directory Server. An unauthenticated remote attacker could use these flaws to trigger high memory consumption in the Directory Server, possibly causing it to crash or terminate unexpectedly when the server ran out of available memory. (CVE-2008-3283) Ulf Weltman of Hewlett-Packard discovered a flaw in the way Directory Server handled LDAP search requests with patterns. A remote attacker with access to the LDAP service could create a search request that, when the search pattern was matched against specially crafted data records, caused Directory Server to use a large amount of CPU time. Directory Server did not impose time limits on such search requests. In this updated package, Directory Server imposes a configurable limit on the pattern-search query run time, with the default limit set to 30 seconds. (CVE-2008-2930) In addition to these security fixes, the following bugs have been fixed in these updated packages: * The change sequence numbers in multi-master replication had a built-in time skew to accommodate differences in the clocks on master servers. Under certain circumstances, this skew exceeded the maximum allowable skew, causing replication to stop entirely. * If an entry with a large attribute value, such as over 32KB, was replicated, the replication could fail with a DB_BUFFER_SMALL error. * If a password policy attribute such as accountunlocktime was added to an entry, the server would attempt to replicate that attribute, causing replication to fail. * In replication scenarios, if an attribute value was scheduled to be deleted and also was indexed or had an attribute subtype which was indexed, the Directory Server would crash during the index operation. * On x86_64 systems, recursively adding groups as members to other groups could crash the server because the stack size for the memberOf plug-in on 64-bit systems was hard-coded to 256KB, regardless of the ulimit value. * A problem in the SASL IO handling meant that memory was not reallocated after SASL binds. For example, a simple bind coming immediately after a SASL bind might have failed. All users of Red Hat Directory Server 8.0 should upgrade to these updated packages, which resolve these issues. 4. Solution: Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188. 5. Bugs fixed (http://bugzilla.redhat.com/): 454065 - CVE-2008-2930 Directory Server: temporary DoS via crafted pattern searches 458977 - CVE-2008-3283 Directory Server: multiple memory leaks 6. Package List: Red Hat IPA 1 for RHEL 5 Server: Source: ftp://ftp.redhat.com/pub/redhat/linux/enterprise/5Server/en/RHEIPA/SRPMS/redhat-ds-base-8.0.4-7.el5dsrv.src.rpm i386: redhat-ds-base-8.0.4-7.el5dsrv.i386.rpm redhat-ds-base-debuginfo-8.0.4-7.el5dsrv.i386.rpm redhat-ds-base-devel-8.0.4-7.el5dsrv.i386.rpm x86_64: redhat-ds-base-8.0.4-7.el5dsrv.x86_64.rpm redhat-ds-base-debuginfo-8.0.4-7.el5dsrv.x86_64.rpm redhat-ds-base-devel-8.0.4-7.el5dsrv.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://www.redhat.com/security/team/key/#package 7. References: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2930 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3283 http://www.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://www.redhat.com/security/team/contact/ Copyright 2008 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.4 (GNU/Linux) iD8DBQFIyBB7XlSAg2UNWIIRAiy5AJ0V5vkKd0GSN12U9hyZ8DuYpEhFvgCfcplY EQm/p51ueJ+nF06D2+YEv1s= =sT9X - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 If you believe that your computer system has been compromised or attacked in any way, we encourage you to let us know by completing the secure National IT Incident Reporting Form at: http://www.auscert.org.au/render.html?it=3192 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQCVAwUBSMhsUyh9+71yA2DNAQJLzgP+K2YErBmfS4treQAYHr0TIafMyN+vAGEI hgr5k1wY6IPfp/kQpelEK7o9O7Cy6kukNdaQFhZiRnaPJl0QFosv8bM5Qjjtg7fr jSXwWYCWGqizpyh7oVT7sX/JHb2xNvDbLT90iakBLlrYB96VZxjbEwzGbrteilTX Vc+rO+ni0Jk= =pAQY -----END PGP SIGNATURE-----