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RHSA-2004:448: krb5 security update

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RHSA-2004:448: krb5 security update

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
09/28/2004
Created
07/25/2018
Added
10/28/2005
Modified
07/12/2017

Description

Updated Kerberos (krb5) packages that correct double-free and ASN.1 parsing bugs are now available for Red Hat Enterprise Linux.

Kerberos is a networked authentication system that uses a trusted third party (a KDC) to authenticate clients and servers to each other. Several double-free bugs were found in the Kerberos 5 KDC and libraries. A remote attacker could potentially exploit these flaws to execuate arbitrary code. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the names CAN-2004-0642 and CAN-2004-0643 to these issues. A double-free bug was also found in the krb524 server (CAN-2004-0772), however this issue was fixed for Red Hat Enterprise Linux 2.1 users by a previous erratum, RHSA-2003:052. An infinite loop bug was found in the Kerberos 5 ASN.1 decoder library. A remote attacker may be able to trigger this flaw and cause a denial of service. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-0644 to this issue. All users of krb5 should upgrade to these updated packages, which contain backported security patches to resolve these issues.

Solution(s)

  • redhat-upgrade-krb5-devel
  • redhat-upgrade-krb5-libs
  • redhat-upgrade-krb5-server
  • redhat-upgrade-krb5-workstation

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