Rapid7 Vulnerability & Exploit Database

Amazon Linux AMI: CVE-2021-28038: Security patch for kernel (ALAS-2021-1487)

Back to Search

Amazon Linux AMI: CVE-2021-28038: Security patch for kernel (ALAS-2021-1487)

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:N/I:N/A:C)
Published
03/05/2021
Created
03/23/2021
Added
03/20/2021
Modified
03/20/2021

Description

An issue was discovered in the Linux kernel through 5.11.3, as used with Xen PV. A certain part of the netback driver lacks necessary treatment of errors such as failed memory allocations (as a result of changes to the handling of grant mapping errors). A host OS denial of service may occur during misbehavior of a networking frontend driver. NOTE: this issue exists because of an incomplete fix for CVE-2021-26931.

Solution(s)

  • amazon-linux-upgrade-kernel

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

;