Quantum Secular Labs / Blog / Advisories

CVE-2004-0523: Mit Kerberos: Buffer overflow

CVE-2004-0523 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Mit Kerberos, along with 5 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Multiple buffer overflows in krb5_aname_to_localname for MIT Kerberos 5 (krb5) 1.3.3 and earlier allow remote attackers to execute arbitrary code as root.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • Mit Kerberos: 1.0; 1.0.8; 1.2.2.beta1
  • Mit Kerberos 5: 1.0; 1.0.6; 1.1; 1.1.1; 1.2; 1.2 beta1; 1.2 beta2; 1.2.1; 1.2.2; 1.2.3; 1.2.4; 1.2.5
  • Sgi Propack: 2.4; 3.0
  • Sun Seam: 1.0; 1.0.1; 1.0.2
  • Tinysofa Enterprise Server: 1.0; 1.0_u1
  • Sun Solaris: 8.0; 9.0
  • Sunos: 5.8

References