Total vulnerabilities in the database
The vm_map_lookup function in sys/vm/vm_map.c in the mmap implementation in the kernel in FreeBSD 9.0 through 9.1-RELEASE-p4 does not properly determine whether a task should have write access to a memory location, which allows local users to bypass filesystem write permissions and consequently gain privileges via a crafted application that leverages read permissions, and makes mmap and ptrace system calls.
| Software | From | Fixed in |
|---|---|---|
| freebsd / freebsd | 9.0 | 9.0.x |
| freebsd / freebsd | 9.1 | 9.1.x |
| freebsd / freebsd | 9.1-p4 | 9.1-p4.x |