ID de Prueba:	1.3.6.1.4.1.25623.1.0.51112
Categoría:	Red Hat Local Security Checks
Título:	RedHat Security Advisory RHSA-2004:236
Resumen:	NOSUMMARY
Descripción:	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
Referencia Cruzada:	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
Copyright	Copyright (c) 2005 E-Soft Inc. http://www.securityspace.com

Esta es sólo una de 145615 pruebas de vulnerabilidad en nuestra serie de pruebas. Encuentre más sobre cómo ejecutar una auditoría de seguridad completa. Para ejecutar una prueba gratuita de esta vulnerabilidad contra su sistema, regístrese ahora.