CVE-2016-1886

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."

CVSS v3.0

7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

1.14% chance of exploitation in the next 30 days, 64th percentile

Published

2016-05-25

Updated

2024-08-05

ExploitDB entries (1)

• https://www.exploit-db.com/exploits/44211

References

• CVE Record
• NVD entry

Related

• CVE-2016-1885
• CVE-2016-1887
• CVE-2016-1879
• CVE-2016-1897
• CVE-2016-1863
• CVE-2016-1909