CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
26.5%
The personality subsystem in the Linux kernel before 2.6.31-rc3 has a
PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and
MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes
it easier for local users to leverage the details of memory usage to (1)
conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr
protection mechanism, or (3) defeat address space layout randomization
(ASLR).