CVE-2016-1886
High
Description
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."
SeverityHigh
CVSS7.8
Exploit probability—
Product
Freebsd
PublishedMay 25, 2016
First seenMay 25, 2016
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freebsd freebsd | 9.3, 10.1, 10.2, 10.3 | — |
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