CVE-2017-5669 Affecting torvalds/linux package, versions [,4.11)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005397
  • published26 Jan 2022
  • disclosed24 Feb 2017
  • creditUnknown

Introduced: 24 Feb 2017

CVE-2017-5669  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 4.11 or higher.

Overview

The do_shmat function in ipc/shm.c in the Linux kernel through 4.9.12 does not restrict the address calculated by a certain rounding operation, which allows local users to map page zero, and consequently bypass a protection mechanism that exists for the mmap system call, by making crafted shmget and shmat system calls in a privileged context.

CVSS Scores

version 3.1