Cisco IOS after 12.3(14)T, 12.3(8)YC1, 12.3(8)YG, and 12.4, with voice support and without Session Initiated Protocol (SIP) configured, allows remote attackers to cause a denial of service (crash) by sending a crafted packet to port 5060/UDP.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Ios | Cisco | 12.3(14)t (including) | 12.3(14)t (including) |
| Ios | Cisco | 12.3(14)t2 (including) | 12.3(14)t2 (including) |
| Ios | Cisco | 12.3(14)t4 (including) | 12.3(14)t4 (including) |
| Ios | Cisco | 12.3(14)t5 (including) | 12.3(14)t5 (including) |
| Ios | Cisco | 12.3yg (including) | 12.3yg (including) |
| Ios | Cisco | 12.3yk (including) | 12.3yk (including) |
| Ios | Cisco | 12.3ym (including) | 12.3ym (including) |
| Ios | Cisco | 12.3yq (including) | 12.3yq (including) |
| Ios | Cisco | 12.3yt (including) | 12.3yt (including) |
| Ios | Cisco | 12.3yu (including) | 12.3yu (including) |
| Ios | Cisco | 12.3yx (including) | 12.3yx (including) |
| Ios | Cisco | 12.4 (including) | 12.4 (including) |
| Ios | Cisco | 12.4(1) (including) | 12.4(1) (including) |
| Ios | Cisco | 12.4(1b) (including) | 12.4(1b) (including) |
| Ios | Cisco | 12.4(1c) (including) | 12.4(1c) (including) |
| Ios | Cisco | 12.4(2)mr (including) | 12.4(2)mr (including) |
| Ios | Cisco | 12.4(2)mr1 (including) | 12.4(2)mr1 (including) |
| Ios | Cisco | 12.4(2)t (including) | 12.4(2)t (including) |
| Ios | Cisco | 12.4(2)t1 (including) | 12.4(2)t1 (including) |
| Ios | Cisco | 12.4(2)t2 (including) | 12.4(2)t2 (including) |
| Ios | Cisco | 12.4(2)t3 (including) | 12.4(2)t3 (including) |
| Ios | Cisco | 12.4(2)t4 (including) | 12.4(2)t4 (including) |
| Ios | Cisco | 12.4(2)xa (including) | 12.4(2)xa (including) |
| Ios | Cisco | 12.4(2)xb (including) | 12.4(2)xb (including) |
| Ios | Cisco | 12.4(2)xb2 (including) | 12.4(2)xb2 (including) |
| Ios | Cisco | 12.4(3) (including) | 12.4(3) (including) |
| Ios | Cisco | 12.4(3)t2 (including) | 12.4(3)t2 (including) |
| Ios | Cisco | 12.4(3a) (including) | 12.4(3a) (including) |
| Ios | Cisco | 12.4(3b) (including) | 12.4(3b) (including) |
| Ios | Cisco | 12.4(3d) (including) | 12.4(3d) (including) |
| Ios | Cisco | 12.4(4)mr (including) | 12.4(4)mr (including) |
| Ios | Cisco | 12.4(4)t (including) | 12.4(4)t (including) |
| Ios | Cisco | 12.4(4)t2 (including) | 12.4(4)t2 (including) |
| Ios | Cisco | 12.4(5) (including) | 12.4(5) (including) |
| Ios | Cisco | 12.4(5b) (including) | 12.4(5b) (including) |
| Ios | Cisco | 12.4(6)t (including) | 12.4(6)t (including) |
| Ios | Cisco | 12.4(6)t1 (including) | 12.4(6)t1 (including) |
| Ios | Cisco | 12.4(7) (including) | 12.4(7) (including) |
| Ios | Cisco | 12.4(7a) (including) | 12.4(7a) (including) |
| Ios | Cisco | 12.4(8) (including) | 12.4(8) (including) |
| Ios | Cisco | 12.4(9)t (including) | 12.4(9)t (including) |
| Ios | Cisco | 12.4mr (including) | 12.4mr (including) |
| Ios | Cisco | 12.4sw (including) | 12.4sw (including) |
| Ios | Cisco | 12.4t (including) | 12.4t (including) |
| Ios | Cisco | 12.4xa (including) | 12.4xa (including) |
| Ios | Cisco | 12.4xb (including) | 12.4xb (including) |
| Ios | Cisco | 12.4xc (including) | 12.4xc (including) |
| Ios | Cisco | 12.4xd (including) | 12.4xd (including) |
| Ios | Cisco | 12.4xe (including) | 12.4xe (including) |
| Ios | Cisco | 12.4xg (including) | 12.4xg (including) |
| Ios | Cisco | 12.4xj (including) | 12.4xj (including) |
| Ios | Cisco | 12.4xp (including) | 12.4xp (including) |
| Ios | Cisco | 12.4xt (including) | 12.4xt (including) |