The tftp_request function in tftp.c in dnsmasq before 2.50, when –enable-tftp is used, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a TFTP read (aka RRQ) request with a malformed blksize option.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Dnsmasq | Thekelleys | * | 2.49 (including) |
| Dnsmasq | Thekelleys | 0.4 (including) | 0.4 (including) |
| Dnsmasq | Thekelleys | 0.5 (including) | 0.5 (including) |
| Dnsmasq | Thekelleys | 0.6 (including) | 0.6 (including) |
| Dnsmasq | Thekelleys | 0.7 (including) | 0.7 (including) |
| Dnsmasq | Thekelleys | 0.95 (including) | 0.95 (including) |
| Dnsmasq | Thekelleys | 0.96 (including) | 0.96 (including) |
| Dnsmasq | Thekelleys | 0.98 (including) | 0.98 (including) |
| Dnsmasq | Thekelleys | 0.992 (including) | 0.992 (including) |
| Dnsmasq | Thekelleys | 0.996 (including) | 0.996 (including) |
| Dnsmasq | Thekelleys | 1.0 (including) | 1.0 (including) |
| Dnsmasq | Thekelleys | 1.2 (including) | 1.2 (including) |
| Dnsmasq | Thekelleys | 1.3 (including) | 1.3 (including) |
| Dnsmasq | Thekelleys | 1.4 (including) | 1.4 (including) |
| Dnsmasq | Thekelleys | 1.5 (including) | 1.5 (including) |
| Dnsmasq | Thekelleys | 1.6 (including) | 1.6 (including) |
| Dnsmasq | Thekelleys | 1.7 (including) | 1.7 (including) |
| Dnsmasq | Thekelleys | 1.8 (including) | 1.8 (including) |
| Dnsmasq | Thekelleys | 1.9 (including) | 1.9 (including) |
| Dnsmasq | Thekelleys | 1.10 (including) | 1.10 (including) |
| Dnsmasq | Thekelleys | 1.11 (including) | 1.11 (including) |
| Dnsmasq | Thekelleys | 1.12 (including) | 1.12 (including) |
| Dnsmasq | Thekelleys | 1.13 (including) | 1.13 (including) |
| Dnsmasq | Thekelleys | 1.14 (including) | 1.14 (including) |
| Dnsmasq | Thekelleys | 1.15 (including) | 1.15 (including) |
| Dnsmasq | Thekelleys | 1.16 (including) | 1.16 (including) |
| Dnsmasq | Thekelleys | 1.17 (including) | 1.17 (including) |
| Dnsmasq | Thekelleys | 1.18 (including) | 1.18 (including) |
| Dnsmasq | Thekelleys | 2.0 (including) | 2.0 (including) |
| Dnsmasq | Thekelleys | 2.1 (including) | 2.1 (including) |
| Dnsmasq | Thekelleys | 2.2 (including) | 2.2 (including) |
| Dnsmasq | Thekelleys | 2.3 (including) | 2.3 (including) |
| Dnsmasq | Thekelleys | 2.4 (including) | 2.4 (including) |
| Dnsmasq | Thekelleys | 2.5 (including) | 2.5 (including) |
| Dnsmasq | Thekelleys | 2.6 (including) | 2.6 (including) |
| Dnsmasq | Thekelleys | 2.7 (including) | 2.7 (including) |
| Dnsmasq | Thekelleys | 2.8 (including) | 2.8 (including) |
| Dnsmasq | Thekelleys | 2.9 (including) | 2.9 (including) |
| Dnsmasq | Thekelleys | 2.10 (including) | 2.10 (including) |
| Dnsmasq | Thekelleys | 2.11 (including) | 2.11 (including) |
| Dnsmasq | Thekelleys | 2.12 (including) | 2.12 (including) |
| Dnsmasq | Thekelleys | 2.13 (including) | 2.13 (including) |
| Dnsmasq | Thekelleys | 2.14 (including) | 2.14 (including) |
| Dnsmasq | Thekelleys | 2.15 (including) | 2.15 (including) |
| Dnsmasq | Thekelleys | 2.16 (including) | 2.16 (including) |
| Dnsmasq | Thekelleys | 2.17 (including) | 2.17 (including) |
| Dnsmasq | Thekelleys | 2.18 (including) | 2.18 (including) |
| Dnsmasq | Thekelleys | 2.19 (including) | 2.19 (including) |
| Dnsmasq | Thekelleys | 2.20 (including) | 2.20 (including) |
| Dnsmasq | Thekelleys | 2.21 (including) | 2.21 (including) |
| Dnsmasq | Thekelleys | 2.22 (including) | 2.22 (including) |
| Dnsmasq | Thekelleys | 2.23 (including) | 2.23 (including) |
| Dnsmasq | Thekelleys | 2.24 (including) | 2.24 (including) |
| Dnsmasq | Thekelleys | 2.25 (including) | 2.25 (including) |
| Dnsmasq | Thekelleys | 2.26 (including) | 2.26 (including) |
| Dnsmasq | Thekelleys | 2.27 (including) | 2.27 (including) |
| Dnsmasq | Thekelleys | 2.28 (including) | 2.28 (including) |
| Dnsmasq | Thekelleys | 2.29 (including) | 2.29 (including) |
| Dnsmasq | Thekelleys | 2.30 (including) | 2.30 (including) |
| Dnsmasq | Thekelleys | 2.31 (including) | 2.31 (including) |
| Dnsmasq | Thekelleys | 2.33 (including) | 2.33 (including) |
| Dnsmasq | Thekelleys | 2.34 (including) | 2.34 (including) |
| Dnsmasq | Thekelleys | 2.35 (including) | 2.35 (including) |
| Dnsmasq | Thekelleys | 2.36 (including) | 2.36 (including) |
| Dnsmasq | Thekelleys | 2.37 (including) | 2.37 (including) |
| Dnsmasq | Thekelleys | 2.38 (including) | 2.38 (including) |
| Dnsmasq | Thekelleys | 2.39 (including) | 2.39 (including) |
| Dnsmasq | Thekelleys | 2.40 (including) | 2.40 (including) |
| Dnsmasq | Thekelleys | 2.41 (including) | 2.41 (including) |
| Dnsmasq | Thekelleys | 2.42 (including) | 2.42 (including) |
| Dnsmasq | Thekelleys | 2.43 (including) | 2.43 (including) |
| Dnsmasq | Thekelleys | 2.44 (including) | 2.44 (including) |
| Dnsmasq | Thekelleys | 2.45 (including) | 2.45 (including) |
| Dnsmasq | Thekelleys | 2.46 (including) | 2.46 (including) |
| Dnsmasq | Thekelleys | 2.47 (including) | 2.47 (including) |
| Dnsmasq | Thekelleys | 2.48 (including) | 2.48 (including) |