CWE Code: 119
Vulnerability Type: privilege_escalation
CVSS Score: 7.2
CWE Name:  Improper Restriction of Operations within the Bounds of a Memory Buffer
Summary: integer signedness error in the genkbd_commonioctl function in sys/dev/kbd/kbd.c in freebsd 9.3 before p42, 10.1 before p34, 10.2 before p17, and 10.3 before p3 allows local users to obtain sensitive information from kernel memory, cause a denial of service (memory overwrite and kernel crash), or gain privileges via a negative value in the flen structure member in the arg argument in a setfkey ioctl call, which triggers a "two way heap and stack overflow."
Access Authentication: NONE
Access Complexity: LOW
Access Vector: LOCAL
Impact (C/I/A): COMPLETE/COMPLETE/COMPLETE
Published Date: 2016-05-25
Last Modified Date: 2017-04-20