TightVNC Server Authentication Cookie Predictability Vulnerability

Solution:
Sun have made fixes available to address this issue in Sun Linux 5.0.7. Fixes are linked below.

Red Hat has released an advisory (RHSA-2003:041-12) and fixes as a solution for this vulnerability.

Gentoo Linux has released an advisory. Users who have installed net-misc/vnc or net-misc/tightvnc are advised to upgrade by issuing the following commands:

emerge sync
emerge -u tightvnc
emerge clean

or

emerge sync
emerge -u vnc
emerge clean

Conectiva has released advisory CLA-2003:640 with fixes to address this issue. Security advisory CLSA-2003:670 has also been released containing a fix for CLEE 1.0, users are advised to upgrade as soon as possible.

Fixes:


TightVNC TightVNC 1.2.2

TightVNC TightVNC 1.2.5

AT&T VNC 3.3.3

AT&T VNC 3.3.3 R2


 

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