Test ID:	1.3.6.1.4.1.25623.1.0.50372
Category:	Fedora Local Security Checks
Title:	Fedora Core 2 FEDORA-2004-150 (krb5)
Summary:	NOSUMMARY
Description:	Description: The remote host is missing an update to krb5 announced via advisory FEDORA-2004-150. Kerberos V5 is a trusted-third-party network authentication system, which can improve your network's security by eliminating the insecure practice of cleartext passwords. Update Information: 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. This update can be downloaded from: http://download.fedora.redhat.com/pub/fedora/linux/core/updates/2/ 437540335f79da1cbbc18d164e6215c0 SRPMS/krb5-1.3.3-7.src.rpm cd6c377ee71fc3ac7a2ed1451632bc99 i386/krb5-devel-1.3.3-7.i386.rpm 4a4a06a0dd0bddb0bf9aefc35825029c i386/krb5-libs-1.3.3-7.i386.rpm f857845fde8315c8d6416e5d7befc605 i386/krb5-server-1.3.3-7.i386.rpm 84cc98e232f3834450b450d44dd9374a i386/krb5-workstation-1.3.3-7.i386.rpm 1ee42664e020e7fa5a4a1c8202aabdee i386/debug/krb5-debuginfo-1.3.3-7.i386.rpm 6dbdb3334974c1735a044deb2632e3a6 x86_64/krb5-devel-1.3.3-7.x86_64.rpm 864422b001ad11e0468ed53cbe6276fe x86_64/krb5-libs-1.3.3-7.x86_64.rpm 606c96ce4814f686a99d7231aa5a6080 x86_64/krb5-server-1.3.3-7.x86_64.rpm ad1573302d8702c705608d5f2803362d x86_64/krb5-workstation-1.3.3-7.x86_64.rpm 6409ec2efcf54640e58451b32efb270a x86_64/debug/krb5-debuginfo-1.3.3-7.x86_64.rpm 4a4a06a0dd0bddb0bf9aefc35825029c x86_64/krb5-libs-1.3.3-7.i386.rpm This update can also be installed with the Update Agent you can launch the Update Agent with the 'up2date' command. Solution: Apply the appropriate updates. http://www.fedoranews.org/updates/FEDORA-2004-150.shtml 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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