RHSA-2003:050 - Security Advisory

Topic

A buffer overflow in kon2 allows local users to obtain root privileges.

Description

KON is a Kanji emulator for the console. There is a buffer overflow
vulnerability in the command line parsing code portion of the kon program
up to and including version 0.3.9b. This vulnerability, if appropriately
exploited, can lead to local users being able to gain escalated (root)
privileges.

All users of kon2 should update to these errata packages which contain a
patch to fix this vulnerability.

Red Hat would like to thank Janusz Niewiadomski for notifying us of this issue.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

Please note that this update is available via Red Hat Network. To use Red
Hat Network, launch the Red Hat Update Agent with the following command:

up2date

This will start an interactive process that will result in the appropriate
RPMs being upgraded on your system.

Affected Products

• Red Hat Enterprise Linux Server 2 i386
• Red Hat Enterprise Linux Workstation 2 i386

Fixes

• BZ - 78109 - CAN-2002-1155 AS2.1: Users can gain root access with kon2

CVEs

• CVE-2002-1155

References

(none)