CVE-2021-4104

Public on 2021-12-13

Modified on 2022-01-18

Description

A flaw was found in the Java logging library Apache Log4j in version 1.x . This allows a remote attacker to execute code on the server if the deployed application is configured to use JMSAppender. This flaw has been filed for Log4j 1.x, the corresponding flaw information for Log4j 2.x is available at: https://access.redhat.com/security/cve/CVE-2021-44228

Severity

Medium

See what this means

CVSS v3 Base Score

8.1

See breakdown

Affected Packages

Platform	Package	Release Date	Advisory
Amazon Linux 1	log4j	2022-01-18 20:15	ALAS-2022-1562
Amazon Linux 2 - Core	log4j	2022-01-18 21:37	ALAS2-2022-1739

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	8.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	CVSSv2	6.0	AV:N/AC:M/Au:S/C:P/I:P/A:P
NVD	CVSSv3	7.5	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2021-4104 Mitre: CVE-2021-4104 FAQs regarding Amazon Linux ALAS/CVE Severity