Multiple integer overflows in the IP_MSFILTER and IPV6_MSFILTER features in (1) sys/netinet/in_mcast.c and (2) sys/netinet6/in6_mcast.c in the multicast implementation in the kernel in FreeBSD 8.3 through 9.2-PRERELEASE allow local users to bypass intended restrictions on kernel-memory read and write operations, and consequently gain privileges, via vectors involving a large number of source-filter entries.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Freebsd | Freebsd | 8.3 (including) | 8.3 (including) |
| Freebsd | Freebsd | 9.0 (including) | 9.0 (including) |
| Freebsd | Freebsd | 9.1 (including) | 9.1 (including) |
| Freebsd | Freebsd | 9.1-p4 (including) | 9.1-p4 (including) |
| Freebsd | Freebsd | 9.1-p5 (including) | 9.1-p5 (including) |
| Freebsd | Freebsd | 9.2-prerelease (including) | 9.2-prerelease (including) |
| Kfreebsd-8 | Ubuntu | lucid | * |
| Kfreebsd-8 | Ubuntu | upstream | * |