Test ID:	1.3.6.1.4.1.25623.1.0.51112
Category:	Red Hat Local Security Checks
Title:	RedHat Security Advisory RHSA-2004:236
Summary:	NOSUMMARY
Description:	Description: The remote host is missing updates announced in advisory RHSA-2004:236. Kerberos is a network authentication system. Bugs have been fixed in the krb5_aname_to_localname library function. Specifically, buffer overflows were possible for all Kerberos versions up to and including 1.3.3. The krb5_aname_to_localname function translates a Kerberos principal name to a local account name, typically a UNIX username. This function is frequently used when performing authorization checks. If configured with mappings from particular Kerberos principals to particular UNIX user names, certain functions called by krb5_aname_to_localname will not properly check the lengths of buffers used to store portions of the principal name. If configured to map principals to user names using rules, krb5_aname_to_localname would consistently write one byte past the end of a buffer allocated from the heap. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2004-0523 to this issue. Only configurations which enable the explicit mapping or rules-based mapping functionality of krb5_aname_to_localname() are vulnerable. These configurations are not the default. Users of Kerberos are advised to upgrade to these erratum packages which contain backported security patches to correct these issues. Solution: Please note that this update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date http://rhn.redhat.com/errata/RHSA-2004-236.html http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2004-001-an_to_ln.txt Risk factor : Critical CVSS Score: 10.0
Cross-Ref:	BugTraq ID: 10448 Common Vulnerability Exposure (CVE) ID: CVE-2004-0523 http://www.securityfocus.com/bid/10448 Bugtraq: 20040601 MITKRB5-SA-2004-001: buffer overflows in krb5_aname_to_localname (Google Search) http://marc.info/?l=bugtraq&m=108612325909496&w=2 Bugtraq: 20040602 TSSA-2004-009 - kerberos5 (Google Search) http://marc.info/?l=bugtraq&m=108619161815320&w=2 CERT/CC vulnerability note: VU#686862 http://www.kb.cert.org/vuls/id/686862 Conectiva Linux advisory: CLA-2004:860 http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000860 Debian Security Information: DSA-520 (Google Search) http://www.debian.org/security/2004/dsa-520 http://lwn.net/Articles/88206/ http://www.gentoo.org/security/en/glsa/glsa-200406-21.xml http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2004:056 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10295 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2002 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A724 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A991 http://www.redhat.com/support/errata/RHSA-2004-236.html SGI Security Advisory: 20040604-01-U ftp://patches.sgi.com/support/free/security/advisories/20040604-01-U.asc SGI Security Advisory: 20040605-01-U ftp://patches.sgi.com/support/free/security/advisories/20040605-01-U.asc http://sunsolve.sun.com/search/document.do?assetkey=1-26-101512-1 http://marc.info/?l=bugtraq&m=108619250923790&w=2 XForce ISS Database: Kerberos-krb5anametolocalname-bo(16268) https://exchange.xforce.ibmcloud.com/vulnerabilities/16268
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