RHEL 5 : krb5 (RHSA-2007:0892)
critical Nessus Plugin ID 26052
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Synopsis
The remote Red Hat host is missing one or more security updates.Description
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.
Solution
Update the affected packages.See Also
https://access.redhat.com/security/cve/cve-2007-4743
Plugin Details
Severity: Critical
ID: 26052
File Name: redhat-RHSA-2007-0892.nasl
Version: 1.32
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/14/2007
Updated: 1/14/2021
Dependencies: ssh_get_info.nasl
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Temporal Vector: E:U/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 Ease: No known exploits are available
Patch Publication Date: 9/7/2007
Vulnerability Publication Date: 9/5/2007
Reference Information
CVE: CVE-2007-3999, CVE-2007-4743
BID: 25534