vulnerability

Red Hat: CVE-2016-9576: Moderate: kernel security, bug fix, and enhancement update (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Dec 28, 2016
Added
Mar 23, 2017
Modified
Feb 14, 2023

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.

Solutions

redhat-upgrade-kernelredhat-upgrade-kernel-rt

References

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