Detections
Analytics
RHEL 5 : krb5 (RHSA-2007:0858)
critical Nessus Plugin ID 25987
Synopsis
The remote Red Hat host is missing one or more security updates.Description
Updated krb5 packages that fix two security flaws 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.
Tenable Network Security discovered a stack-based buffer overflow flaw in the RPC library used by kadmind. 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-2007-3999)
Garrett Wollman discovered an uninitialized pointer flaw in kadmind. A remote unauthenticated attacker who can access kadmind could trigger this flaw and cause kadmind to crash. (CVE-2007-4000)
These issues 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 backported fixes to correct these issues.
Solution
Update the affected packages.See Also
https://access.redhat.com/security/cve/cve-2007-3999
https://access.redhat.com/security/cve/cve-2007-4000
Plugin Details
Severity: Critical
ID: 25987
File Name: redhat-RHSA-2007-0858.nasl
Version: 1.35
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/5/2007
Updated: 1/14/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.9
CVSS v2
Risk Factor: Critical
Base Score: 10
Temporal Score: 7.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:krb5-workstation, p-cpe:/a:redhat:enterprise_linux:krb5-server, p-cpe:/a:redhat:enterprise_linux:krb5-libs, p-cpe:/a:redhat:enterprise_linux:krb5-devel
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: 9/4/2007
Vulnerability Publication Date: 9/5/2007
Reference Information
CVE: CVE-2007-3999, CVE-2007-4000
BID: 25534