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Ubuntu 16.04 ESM: 5192-2 Critical: Apache Log4j 2 Remote Code Execution

Apache Log4j 2 could be made to crash or run programs as an administrator if it received a specially crafted input.. =========================================================================Ubuntu Security Notice USN-5192-2 December 17, 2021 apache-log4j2 vulnerability ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM Summary: Apache Log4j 2 could be made to crash or run programs as an administrator if it received a specially crafted input. Software Description: - apache-log4j2: Apache Log4j - Logging Framework for Java Details: USN-5192-1 fixed a vulnerability in Apache Log4j 2. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Chen Zhaojun discovered that Apache Log4j 2 allows remote attackers to run programs via a special crafted input. An attacker could use this vulnerability to cause a denial of service or possibly execute arbitrary code. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: liblog4j2-java 2.4-2ubuntu0.1~esm1 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5192-2 https://ubuntu.com/security/notices/USN-5192-1 CVE-2021-44228 . The recent flaw in Apache Log4j 2 enables unauthorized remote execution and system instability. It's crucial to apply the necessary security updates to your Ubuntu system.. apache log4j, linux security, ubuntu advisory. . Severity: Critical. LinuxSecurity.com Team

Dec 17, 2021 •Critical Ubuntu