isakmp_sub_print in tcpdump 3.6 through 3.7.1 allows remote attackers to cause a denial of service (CPU consumption) via a certain malformed ISAKMP packet to UDP port 500, which causes tcpdump to enter an infinite loop.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Tcpdump | Lbl | 3.5.2 (including) | 3.5.2 (including) |
| Tcpdump | Lbl | 3.6.2 (including) | 3.6.2 (including) |
| Tcpdump | Lbl | 3.7 (including) | 3.7 (including) |
| Tcpdump | Lbl | 3.7.1 (including) | 3.7.1 (including) |