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Amazon Linux AMI 2: CVE-2021-39151: Security patch for xstream (ALAS-2021-1729)

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Amazon Linux AMI 2: CVE-2021-39151: Security patch for xstream (ALAS-2021-1729)

Severity
6
CVSS
(AV:N/AC:M/Au:S/C:P/I:P/A:P)
Published
08/23/2021
Created
07/16/2022
Added
07/04/2022
Modified
07/14/2022

Description

XStream is a simple library to serialize objects to XML and back again. In affected versions this vulnerability may allow a remote attacker to load and execute arbitrary code from a remote host only by manipulating the processed input stream. No user is affected, who followed the recommendation to setup XStream's security framework with a whitelist limited to the minimal required types. XStream 1.4.18 uses no longer a blacklist by default, since it cannot be secured for general purpose.

Solution(s)

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

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