The copy_shmid_to_user function in ipc/shm.c in the Linux kernel before 2.6.37-rc1 does not initialize a certain structure, which allows local users to obtain potentially sensitive information from kernel stack memory via vectors related to the shmctl system call and the "old shm interface."
| Software | From | Fixed in |
|---|---|---|
| debian / debian_linux | 5.0 | 5.0.x |
| linux / linux_kernel | - | 2.6.37 |
| linux / linux_kernel | 2.6.37 | 2.6.37.x |
| opensuse / opensuse | 11.3 | 11.3.x |
| canonical / ubuntu_linux | 10.04 | 10.04.x |
| canonical / ubuntu_linux | 10.10 | 10.10.x |
| canonical / ubuntu_linux | 6.06 | 6.06.x |
| canonical / ubuntu_linux | 9.10 | 9.10.x |
| suse / linux_enterprise_desktop | 10-sp3 | 10-sp3.x |
| suse / linux_enterprise_desktop | 11-sp1 | 11-sp1.x |
| suse / linux_enterprise_server | 10-sp3 | 10-sp3.x |
| suse / linux_enterprise_server | 11-sp1 | 11-sp1.x |
| suse / linux_enterprise_server | 9 | 9.x |
| suse / linux_enterprise_software_development_kit | 10-sp3 | 10-sp3.x |
| suse / linux_enterprise_real_time_extension | 11-sp1 | 11-sp1.x |