FreeBSD : krb5 -- MITKRB5-SA-2011-004, kadmind invalid pointer free() [CVE-2011-0285] (6a3c3e5c-66cb-11e0-a116-c535f3aa24f0)

critical Nessus Plugin ID 53442

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

An advisory published by the MIT Kerberos team says :

The password-changing capability of the MIT krb5 administration daemon (kadmind) has a bug that can cause it to attempt to free() an invalid pointer under certain error conditions. This can cause the daemon to crash or induce the execution of arbitrary code (which is believed to be difficult). No exploit that executes arbitrary code is known to exist, but it is easy to trigger a denial of service manually.

Some platforms detect attempted freeing of invalid pointers and protectively terminate the process, preventing arbitrary code execution on those platforms.

Solution

Update the affected packages.

See Also

http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-004.txt

http://www.nessus.org/u?cc1cdd97

Plugin Details

Severity: Critical

ID: 53442

File Name: freebsd_pkg_6a3c3e5c66cb11e0a116c535f3aa24f0.nasl

Version: 1.9

Type: local

Published: 4/15/2011

Updated: 1/6/2021

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:krb5, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 4/14/2011

Vulnerability Publication Date: 4/12/2011

Reference Information

CVE: CVE-2011-0285