The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libssh | Libssh | * | 0.6.4 (including) |
| Libssh | Ubuntu | precise | * |
| Libssh | Ubuntu | trusty | * |
| Libssh | Ubuntu | upstream | * |
| Libssh | Ubuntu | utopic | * |
| Libssh | Ubuntu | vivid | * |
| Libssh | Ubuntu | wily | * |