RHSA-2003:071 - Security Advisory

Topic

Updated Hangul Terminal packages fix two security issues.

Description

Hangul Terminal is a terminal emulator for the X Window System, based on Xterm.

Hangul Terminal provides an escape sequence for reporting the current
window title, which essentially takes the current title and places it
directly on the command line. An attacker can craft an escape sequence
that sets the window title of a victim using Hangul Terminal to an
arbitrary command and then report it to the command line. Since it is not
possible to embed a carriage return into the window title the attacker
would then have to convince the victim to press Enter for it to process the
title as a command, although the attacker could craft other escape
sequences that might convince the victim to do so.

It is possible to lock up Hangul Terminal before version 2.0.5 by sending
an invalid DEC UDK escape sequence.

Users are advised to upgrade to these erratum packages, which contain
Hangul Terminal version 2.0.5 which is not vulnerable to these issues.

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 ia64
• Red Hat Enterprise Linux Server 2 i386
• Red Hat Enterprise Linux Workstation 2 ia64
• Red Hat Enterprise Linux Workstation 2 i386

Fixes

• BZ - 85072 - Escape sequence vulnerabilities in hanterm-xf

CVEs

• CVE-2003-0079
• CVE-2003-0077

References

(none)