VULNERABILITY

Amazon Linux AMI 2: CVE-2021-21348: Security patch for xstream (ALAS-2021-1645)

Try Surface Command Get a continuous 360° view of your attack surface
Back to Search

Amazon Linux AMI 2: CVE-2021-21348: Security patch for xstream (ALAS-2021-1645)

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
03/23/2021
Created
01/10/2024
Added
01/09/2024
Modified
11/26/2024

Description

XStream is a Java library to serialize objects to XML and back again. In XStream before version 1.4.16, there is a vulnerability which may allow a remote attacker to occupy a thread that consumes maximum CPU time and will never return. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. If you rely on XStream's default blacklist of the Security Framework, you will have to use at least version 1.4.16.

Solution(s)

  • amazon-linux-ami-2-upgrade-xstream
  • amazon-linux-ami-2-upgrade-xstream-javadoc

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
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

;