VULNERABILITY INTELLIGENCE

CVE-2016-9576

CVSS score7.8 HIGH
EPSS probability0.44%
CISA KEVNot currently listed
Published2016-12-28
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel before 4.8.14 does not properly restrict the type of iterator, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device.

Weakness classification

  • CWE-416: Use After Free

Primary references