The br_mdb_ip_get function in net/bridge/br_multicast.c in the Linux kernel before 2.6.35-rc5 allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an IGMP packet, related to lack of a multicast table.
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 2.6.34.7 (including) |
| Linux_kernel | Linux | 2.6.35 (including) | 2.6.35 (including) |
| Linux_kernel | Linux | 2.6.35-rc1 (including) | 2.6.35-rc1 (including) |
| Linux_kernel | Linux | 2.6.35-rc2 (including) | 2.6.35-rc2 (including) |
| Linux_kernel | Linux | 2.6.35-rc3 (including) | 2.6.35-rc3 (including) |
| Linux_kernel | Linux | 2.6.35-rc4 (including) | 2.6.35-rc4 (including) |
| Linux | Ubuntu | maverick | * |
| Linux | Ubuntu | upstream | * |
| Linux-ec2 | Ubuntu | maverick | * |
| Linux-ec2 | Ubuntu | upstream | * |
| Linux-fsl-imx51 | Ubuntu | upstream | * |
| Linux-lts-backport-maverick | Ubuntu | lucid | * |
| Linux-lts-backport-maverick | Ubuntu | upstream | * |
| Linux-lts-backport-natty | Ubuntu | upstream | * |
| Linux-mvl-dove | Ubuntu | karmic | * |
| Linux-mvl-dove | Ubuntu | upstream | * |
| Linux-source-2.6.15 | Ubuntu | upstream | * |
| Linux-ti-omap4 | Ubuntu | upstream | * |