GLSA-200709-01 : MIT Kerberos 5: Multiple vulnerabilities

Critical Nessus Plugin ID 26041

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200709-01 (MIT Kerberos 5: Multiple vulnerabilities)

A stack-based buffer overflow (CVE-2007-3999) has been reported in svcauth_gss_validate() of the RPC library of kadmind. Another vulnerability (CVE-2007-4000) has been found in kadm5_modify_policy_internal(), which does not check the return values of krb5_db_get_policy() correctly.
Impact :

The RPC related vulnerability can be exploited by a remote unauthenticated attacker to execute arbitrary code with root privileges on the host running kadmind. The second vulnerability requires the remote attacker to be authenticated and to have 'modify policy' privileges. It could then also allow for the remote execution of arbitrary code.
Workaround :

There is no known workaround at this time.

Solution

All MIT Kerberos 5 users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=app-crypt/mit-krb5-1.5.3-r1'

See Also

https://security.gentoo.org/glsa/200709-01

https://www.tenable.com/security/research/tra-2007-07

Plugin Details

Severity: Critical

ID: 26041

File Name: gentoo_GLSA-200709-01.nasl

Version: 1.20

Type: local

Published: 2007/09/14

Updated: 2018/07/11

Dependencies: 12634

Risk Information

Risk Factor: Critical

CVSS v2.0

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:mit-krb5, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2007/09/11

Vulnerability Publication Date: 2007/09/04

Reference Information

CVE: CVE-2007-3999, CVE-2007-4000

GLSA: 200709-01

TRA: TRA-2007-07

CWE: 20, 119, 264