kdebase: KDM vulnerabilities
Gentoo Linux Security Advisory
||GLSA 200311-01 / kdebase
||November 15, 2003
||November 15, 2003: 01
||local / remote
All supported architectures
A bug in KDM can allow privilege escalation with certain configurations of
KDM is the desktop manager included with the K Desktop Environment.
Firstly, versions of KDM <=3.1.3 are vulnerable to a privilege escalation
bug with a specific configuration of PAM modules. Users who do not use PAM
with KDM and users who use PAM with regular Unix crypt/MD5 based
authentication methods are not affected.
Secondly, KDM uses a weak cookie generation algorithm. Users are advised to
upgrade to KDE 3.1.4, which uses /dev/urandom as a non-predictable source of
entropy to improve security.
A remote or local attacker could gain root privileges.
There is no known workaround at this time.
It is recommended that all Gentoo Linux users who are running
kde-base/kdebase <=3.1.3 upgrade:
Code Listing 3.1: Resolution
# emerge sync
# emerge -pv '>=kde-base/kde-3.1.4'
# emerge '>=kde-base/kde-3.1.4'
# emerge clean