Summary
Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2021-45046: A flaw was found in the Apache Log4j logging library in versions from 2.0.0 and before 2.16.0. A remote attacker with control over Thread Context Map (MDC) input data could craft malicious input using a JNDI Lookup pattern resulting in a denial of service (DOS) attack. CVE-2021-44228: A flaw was found in the Java logging library Apache Log4j 2 in versions from 2.0-beta9 and before and including 2.14.1. This could allow a remote attacker to execute code on the server if the system logs an attacker-controlled string value with the attacker's JNDI LDAP server lookup.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Amazon Linux · 2 | aws-kinesis-agent | 0:2.0.4-1.amzn2 |
Vulnerabilities 2
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Critical 10.0
Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints
Apache Log4j2 2.0-beta9 through 2.15.0 (excluding security releases 2.12.2, 2.12.3, and 2.3.1) JNDI features used in configuration, log messages, and parameters do not protect against attacker controlled LDAP and other JNDI related endpoints. An attacker who …
KEV Dec 10, 2021 -
Critical 9.0
Apache Log4j2 Thread Context Message Pattern and Context Lookup Pattern vulnerable to a denial of service attack
It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-defaul…
KEV May 1, 2023