Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI: CVE-2020-27675: Security patch for kernel ((Multiple Advisories))

Free InsightVM Trial No credit card necessary
Watch Demo See how it all works
Back to Search

Amazon Linux AMI: CVE-2020-27675: Security patch for kernel ((Multiple Advisories))

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
10/22/2020
Created
12/22/2020
Added
12/19/2020
Modified
10/14/2022

Description

An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5.

Solution(s)

  • amazon-linux-upgrade-kernel

References

  • ALAS-2021-1461
  • CVE-2020-27675
  • USN-4679-1
  • USN-4680-1
  • USN-4681-1
  • USN-4751-1

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

;