The arch_pick_mmap_layout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDR_NO_RANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid or setgid program, by disabling stack-consumption resource limits.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Ubuntu_linux | Canonical | 12.04 | 12.04 |
Ubuntu_linux | Canonical | 15.10 | 15.10 |
Ubuntu_linux | Canonical | 14.04 | 14.04 |