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TITLE:
xterm DECRQSS Escape Sequence Vulnerability

SECUNIA ADVISORY ID:
SA33318

VERIFY ADVISORY:
http://secunia.com/advisories/33318/

CRITICAL:
Moderately critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
xterm
http://secunia.com/advisories/product/20887/

DESCRIPTION:
A vulnerability has been discovered in xterm, which can be exploited
by malicious people to compromise a user's system.

The vulnerability is caused due to xterm not properly processing the
DECRQSS Device Control Request Status String escape sequence. This
can be exploited to inject and execute arbitrary shell commands by
e.g. tricking a user into displaying a malicious text file containing
a specially crafted escape sequence via the "more" command in xterm.

This is related to:
SA8146

The vulnerability is confirmed in xterm patch #237. Other versions
may also be affected.

SOLUTION:
Do not process untrusted files in xterm.

PROVIDED AND/OR DISCOVERED BY:
Reported by Paul Szabo in a Debian bug.

ORIGINAL ADVISORY:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=510030

OTHER REFERENCES:
SA8146:
http://secunia.com/advisories/8146/

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