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CVE-2021-39144

Public on 2021-08-23
Modified on 2022-10-12
Description

A flaw was found in xstream, a simple library used to serialize objects to XML and back again. This flaw allows a remote attacker to load and execute arbitrary code from a remote host by manipulating the processed input stream. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Severity
Important
See what this means
CVSS v3 Base Score
8.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core xstream 2021-12-08 16:28 ALAS2-2021-1729

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD CVSSv3 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD CVSSv2 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

References

Red Hat: CVE-2021-39144 Mitre: CVE-2021-39144 FAQs regarding Amazon Linux ALAS/CVE Severity