Detections
Analytics

CentOS 6 : krb5 (CESA-2011:1790)

medium Nessus Plugin ID 57375

Language:

Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated krb5 packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

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).

A NULL pointer dereference flaw was found in the way the MIT Kerberos KDC processed certain TGS (Ticket-granting Server) requests. A remote, authenticated attacker could use this flaw to crash the KDC via a specially crafted TGS request. (CVE-2011-1530)

Red Hat would like to thank the MIT Kerberos project for reporting this issue.

All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, the krb5kdc daemon will be restarted automatically.

Solution

Update the affected krb5 packages.

See Also

http://www.nessus.org/u?5e6f24f4

Plugin Details

Severity: Medium

ID: 57375

File Name: centos_RHSA-2011-1790.nasl

Version: 1.12

Type: local

Agent: unix

Published: 12/23/2011

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

Vulnerability Information

CPE: p-cpe:/a:centos:centos:krb5-workstation, cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:krb5-pkinit-openssl, 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-server-ldap

Required KB Items: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/22/2011

Vulnerability Publication Date: 12/8/2011

Reference Information

CVE: CVE-2011-1530

BID: 50929

RHSA: 2011:1790