RHEL 2.1 : kdebase (RHSA-2003:270)

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Synopsis :

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

Description :

Updated KDE packages that resolve a local security issue with KDM PAM
support and weak session cookie generation are now available.

KDE is a graphical desktop environment for the X Window System.

KDE between versions 2.2.0 and 3.1.3 inclusive contain a bug in the
KDE Display Manager (KDM) when checking the result of a pam_setcred()
call. If an error condition is triggered by the installed PAM modules,
KDM might grant local root access to any user with valid login
credentials.

It has been reported that one way to trigger this bug is by having a
certain configuration of the MIT pam_krb5 module that leaves a session
alive and gives root access to a regular user. The Common
Vulnerabilities and Exposures project (cve.mitre.org) has assigned the
name CVE-2003-0690 to this issue.

In addition, the session cookie generation algorithm used by KDM was
considered too weak to supply a full 128 bits of entropy. This could
make it possible for non-authorized users, who are able to bypass any
host restrictions, to brute-force the session cookie and gain acess to
the current session. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CVE-2003-0692 to this issue.

Users of KDE are advised to upgrade to these erratum packages, which
contain security patches correcting these issues.

Red Hat would like to thank the KDE team for notifying us of this
issue and providing the security patches.

See also :

https://www.redhat.com/security/data/cve/CVE-2003-0690.html
https://www.redhat.com/security/data/cve/CVE-2003-0692.html
http://www.kde.org/info/security/advisory-20030916-1.txt
http://rhn.redhat.com/errata/RHSA-2003-270.html

Solution :

Update the affected kdebase and / or kdebase-devel packages.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)

Family: Red Hat Local Security Checks

Nessus Plugin ID: 12419 ()

Bugtraq ID:

CVE ID: CVE-2003-0690
CVE-2003-0692