RHEL 5 : krb5 (RHSA-2007:0892)

Critical Nessus Plugin ID 26052


The remote Red Hat host is missing one or more security updates.


Updated krb5 packages that correct a security flaw are now available for Red Hat Enterprise Linux 5.

This update has been rated as having important 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 through use of symmetric encryption and a trusted third party, the KDC. kadmind is the KADM5 administration server.

The MIT Kerberos Team discovered a problem with the originally published patch for svc_auth_gss.c (CVE-2007-3999). A remote unauthenticated attacker who can access kadmind could trigger this flaw and cause kadmind to crash. On Red Hat Enterprise Linux 5 it is not possible to exploit this flaw to run arbitrary code as the overflow is blocked by FORTIFY_SOURCE. (CVE-2007-4743)

This issue did not affect the versions of Kerberos distributed with Red Hat Enterprise Linux 2.1, 3, or 4.

Users of krb5-server are advised to update to these erratum packages which contain a corrected backported fix for this issue.


Update the affected packages.

See Also




Plugin Details

Severity: Critical

ID: 26052

File Name: redhat-RHSA-2007-0892.nasl

Version: $Revision: 1.25 $

Type: local

Agent: unix

Published: 2007/09/14

Modified: 2016/12/29

Dependencies: 12634

Risk Information

Risk Factor: Critical


Base Score: 10

Temporal Score: 8.7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:krb5-devel, p-cpe:/a:redhat:enterprise_linux:krb5-libs, p-cpe:/a:redhat:enterprise_linux:krb5-server, p-cpe:/a:redhat:enterprise_linux:krb5-workstation, cpe:/o:redhat:enterprise_linux:5

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

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2007/09/07

Vulnerability Publication Date: 2007/09/05

Reference Information

CVE: CVE-2007-3999, CVE-2007-4743

BID: 25534

OSVDB: 37332

RHSA: 2007:0892

TRA: TRA-2007-07

CWE: 20, 119