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GLSA-200409-09 : MIT krb5: Multiple vulnerabilities

high Nessus Plugin ID 14666

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-200409-09 (MIT krb5: Multiple vulnerabilities)

 The implementation of the Key Distribution Center (KDC) and the MIT krb5 library contain double-free vulnerabilities, making client programs as well as application servers vulnerable.
 The ASN.1 decoder library is vulnerable to a denial of service attack, including the KDC.
 Impact :

 The double-free vulnerabilities could allow an attacker to execute arbitrary code on a KDC host and hosts running krb524d or vulnerable services. In the case of a KDC host, this can lead to a compromise of the entire Kerberos realm. Furthermore, an attacker impersonating a legitimate KDC or application server can potentially execute arbitrary code on authenticating clients.
 An attacker can cause a denial of service for a KDC or application server and clients, the latter if impersonating a legitimate KDC or application server.
 Workaround :

 There is no known workaround at this time.

Solution

All mit-krb5 users should upgrade to the latest stable version:
 # emerge sync # emerge -pv '>=app-crypt/mit-krb5-1.3.4' # emerge '>=app-crypt/mit-krb5-1.3.4'

See Also

http://www.nessus.org/u?34bb0fc8

http://www.nessus.org/u?4d0e4d09

https://security.gentoo.org/glsa/200409-09

Plugin Details

Severity: High

ID: 14666

File Name: gentoo_GLSA-200409-09.nasl

Version: 1.18

Type: local

Published: 9/6/2004

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

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

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

Patch Publication Date: 9/6/2004

Vulnerability Publication Date: 8/31/2004

Reference Information

CVE: CVE-2004-0642, CVE-2004-0643, CVE-2004-0644, CVE-2004-0772

CWE: 119

GLSA: 200409-09