In-Reply-To: <20041214173439.24838.qmail@xxxxxxxxxxxxxxxxxxxxx> Sorry, I forgot something. The below is the correct description. --------------------------------------- If it receives a icmp packet that: 1. icmp total length is bigger than 28(8 header + 20 data) 2. icmp[0] == 3 (or 4, 11 , 12. other value?) 3. (icmp[9] & 0x05) < 5 -- (ip header length < 5?) 4. icmp[17] == 17 or 6(other value?) -- (protocol field in ip header?) then it reboots. --------------------------------------- > > RICOH Aficio 450/455 PCL 5e Printer ICMP DOS vulnerability > >AUTHOR: >(Fortinet, inc) >Hongzhen Zhou<felix__zhou _at_ hotmail _dot_ com> > >DATE: >14/12/2004 > >PRODUCTS: >RICOH Aficio 450/455 PCL 5e Printer(SAVIN 9945 DPE/2045 DPE) >Other RICOH Aficio products (or Toshiba printer products?)may be vulnerable > >DETAILS: >RICOH Aficio 450/455 PCL does not conduct some kinds of ICMP >packet properly. >If it receives a icmp packet that: >1. icmp total length is bigger than 28(8 header + 20 data) >2. icmp[0] == 3 (or 4, 11 , 12. other value?) >3. icmp[17] == 17 or 6(other value?) -- (protocol field in ip header?) >then it reboots.
