CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:C/I:N/A:N
EPSS
Percentile
0.4%
The do_sigaltstack function in kernel/signal.c in Linux kernel 2.4 through
2.4.37 and 2.6 before 2.6.31-rc5, when running on 64-bit systems, does not
clear certain padding bytes from a structure, which allows local users to
obtain sensitive information from the kernel stack via the sigaltstack
function.