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Mac printing causing IPS Rule Blocks

I have a user printing from a MAC to ta sharp printer and every time he does, his printer hangs and I get Snort notifications of CRIT-852.

Rules triggered are:
15890
15888
15889

Any idea why these are causing problems?  Once his print queue hangs he is stuck until he reboots.


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  • FYI
    Here are the IPS logs entries for the events in question.  10.16.2.140 is my user and 10.10.2.200 is my printer.

    2010:04:28-12:06:08 marg ulogd[3328]: id="2104" severity="info" sys="SecureNet" sub="ips" name="ICMP flood detected" action="ICMP flood" fwrule="60014" seq="0" initf="eth1" dstmac="00:1a:8c:15[:D]f:01" srcmac="00:1e:4c:18:ce:bb" srcip="128.242.114.243" dstip="67.79.17.221" proto="1" length="68" tos="0x00" prec="0x00" ttl="50" type="3" code="3" 
    
    2010:04:28-12:21:00 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1021" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:22:03 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1021" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:23:07 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1021" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:24:11 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1021" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:26:05 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:27:08 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:28:12 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:29:15 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:30:19 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:31:23 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:32:28 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:33:32 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"
    2010:04:28-12:34:35 marg snort[1211]: id="2101" severity="warn" sys="SecureNet" sub="ips" name="Intrusion protection alert" action="drop" reason="EXPLOIT SAPLPD 0x34 command buffer overflow attempt" group="232" srcip="10.16.2.140" dstip="10.10.2.200" proto="6" srcport="1020" dstport="515" sid="15891" class="Attempted Administrator Privilege Gain" priority="1"  generator="1" msgid="0"