CVE Catalog

CVE-2016-1886

High
Published: Translated: NVD NIST

Summary

An integer signedness error in the genkbd_commonioctl function in FreeBSD allows local users to obtain sensitive information from kernel memory, cause a denial of service, or gain privileges via a negative value in the flen structure.

Risk Assessment

This vulnerability can lead to serious security issues, including data leakage and operating system crashes, which may affect service availability.

Recommendation

It is recommended to update the system to the latest version to mitigate this vulnerability and to monitor the system for unauthorized activities.

Related vulnerabilities

Original NVD description (English source)

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."

Vulnerability data from NVD (NIST) · CISA KEV · EPSS