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RHSA-2009:0408 -- krb5 security update (Important)

oval:org.mitre.oval:def:28421

Updated krb5 packages that fix various security issues are now available for Red Hat Enterprise Linux 5. This update has been rated as having important security impact by the Red Hat Security Response Team. Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third party the Key Distribution Center (KDC). The Generic Security Service Application Program Interface (GSS-API) definition provides security services to callers (protocols) in a generic fashion. The Simple and Protected GSS-API Negotiation (SPNEGO) mechanism is used by GSS-API peers to choose from a common set of security mechanisms. An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library such as kadmind or krb5kdc by causing it to dereference or free an uninitialized pointer. (CVE-2009-0846)

Family:
unix
Status:
ACCEPTED
Platform(s):
  • CentOS Linux 5
  • Red Hat Enterprise Linux 5
Class:
patch
Reference(s):
  • RHSA-2009:0408
  • CESA-2009:0408-CentOS 5
  • CVE-2009-0844
  • CVE-2009-0845
  • CVE-2009-0846
Product(s):
  • krb5