Rapid7 Vulnerability & Exploit Database

Red Hat: CVE-2018-20856: Important: kernel security and bug fix update (Multiple Advisories)

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

Red Hat: CVE-2018-20856: Important: kernel security and bug fix update (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:P/I:P/A:P)
Published
07/26/2019
Created
10/17/2019
Added
10/16/2019
Modified
03/03/2021

Description

An issue was discovered in the Linux kernel before 4.18.7. In block/blk-core.c, there is an __blk_drain_queue() use-after-free because a certain error case is mishandled.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt
  • redhat-upgrade-kpatch-patch-3_10_0-1062
  • redhat-upgrade-kpatch-patch-3_10_0-1062-debuginfo
  • redhat-upgrade-kpatch-patch-3_10_0-1062_1_1
  • redhat-upgrade-kpatch-patch-3_10_0-1062_1_1-debuginfo
  • redhat-upgrade-kpatch-patch-3_10_0-1062_1_2
  • redhat-upgrade-kpatch-patch-3_10_0-1062_1_2-debuginfo
  • redhat-upgrade-kpatch-patch-3_10_0-957_35_1
  • redhat-upgrade-kpatch-patch-3_10_0-957_35_1-debuginfo
  • redhat-upgrade-kpatch-patch-3_10_0-957_35_2
  • redhat-upgrade-kpatch-patch-3_10_0-957_35_2-debuginfo
  • redhat-upgrade-kpatch-patch-3_10_0-957_38_1
  • redhat-upgrade-kpatch-patch-3_10_0-957_38_1-debuginfo
  • redhat-upgrade-kpatch-patch-3_10_0-957_38_2
  • redhat-upgrade-kpatch-patch-3_10_0-957_38_3
  • redhat-upgrade-kpatch-patch-3_10_0-957_41_1
  • redhat-upgrade-kpatch-patch-3_10_0-957_43_1

References

  • DSA-4497
  • CVE-2018-20856
  • RHSA-2019:3055
  • RHSA-2019:3076
  • RHSA-2019:3089
  • RHSA-2019:3217
  • RHSA-2020:0100
  • RHSA-2020:0103
  • RHSA-2020:0543
  • RHSA-2020:0664
  • RHSA-2020:0698
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

;