Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2020-11565: CVE-2020-11565 kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
Watch Demo See how it all works
Back to Search

Red Hat: CVE-2020-11565: CVE-2020-11565 kernel: out-of-bounds write in mpol_parse_str function in mm/mempolicy.c (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:N/I:P/A:P)
Published
04/06/2020
Created
07/08/2020
Added
07/08/2020
Modified
03/13/2024

Description

An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing, aka CID-aa9f7d5172fa. NOTE: Someone in the security community disagrees that this is a vulnerability because the issue “is a bug in parsing mount options which can only be specified by a privileged user, so triggering the bug does not grant any powers not already held.”

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • DSA-4667
  • DSA-4698
  • CVE-2020-11565
  • RHSA-2020:4060
  • RHSA-2020:4062
  • RHSA-2020:4431
  • RHSA-2020:4609
View more

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;