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CVE-2007-2442: Mit Kerberos 5: Remote code execution

CVE-2007-2442 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Mit Kerberos 5, along with 2 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

The gssrpc__svcauth_gssapi function in the RPC library in MIT Kerberos 5 (krb5) 1.6.1 and earlier might allow remote attackers to execute arbitrary code via a zero-length RPC credential, which causes kadmind to free an uninitialized pointer during cleanup.

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.

Underlying weakness

CWE-824: Access of Uninitialized Pointer

The product accesses or uses a pointer that has not been initialized.

Affected products

Mit Kerberos 5: up to and including 1.6.1
Debian Linux: 3.1; 4.0
Canonical Ubuntu Linux: 6.06; 6.10; 7.04