CentOS 3 : krb5 (CESA-2009:0410)
critical Nessus Plugin ID 36107
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Synopsis
The remote CentOS host is missing one or more security updates.Description
Updated krb5 packages that fix a security issue are now available for Red Hat Enterprise Linux 2.1 and 3.This update has been rated as having critical security impact by the Red Hat Security Response Team.
Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third party, the Key Distribution Center (KDC).
An input validation flaw was found in the ASN.1 (Abstract Syntax Notation One) decoder used by MIT Kerberos. A remote attacker could use this flaw to crash a network service using the MIT Kerberos library, such as kadmind or krb5kdc, by causing it to dereference or free an uninitialized pointer or, possibly, execute arbitrary code with the privileges of the user running the service. (CVE-2009-0846)
All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect.
Solution
Update the affected krb5 packages.See Also
http://www.nessus.org/u?3d67f2f4
Plugin Details
Severity: Critical
ID: 36107
File Name: centos_RHSA-2009-0410.nasl
Version: 1.15
Type: local
Agent: unix
Family: CentOS Local Security Checks
Published: 4/8/2009
Updated: 1/4/2021
Dependencies: ssh_get_info.nasl
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
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:centos:centos:krb5-devel, p-cpe:/a:centos:centos:krb5-libs, p-cpe:/a:centos:centos:krb5-server, p-cpe:/a:centos:centos:krb5-workstation, cpe:/o:centos:centos:3
Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
Patch Publication Date: 4/7/2009
Vulnerability Publication Date: 3/27/2009
Reference Information
CVE: CVE-2009-0844, CVE-2009-0845, CVE-2009-0846, CVE-2009-0847