The L2TP protocol parser in tcpdump 3.8.1 and earlier allows remote attackers to cause a denial of service (infinite loop and memory consumption) via a packet with invalid data to UDP port 1701, which causes l2tp_avp_print to use a bad length value when calling print_octets.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Tcpdump | Lbl | 3.5 | 3.5 |
| Tcpdump | Lbl | 3.5.2 | 3.5.2 |
| Tcpdump | Lbl | 3.7 | 3.7 |
| Tcpdump | Lbl | 3.4 | 3.4 |
| Tcpdump | Lbl | 3.6.3 | 3.6.3 |
| Tcpdump | Lbl | 3.6.2 | 3.6.2 |