USN-5222-1

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USN-5222-1

Summary: apache-log4j2 vulnerabilities

Details: It was discovered that Apache Log4j 2 was vulnerable to remote code execution (RCE) attack when configured to use a JDBC Appender with a JNDI LDAP data source URI. A remote attacker could possibly use this issue to cause a crash, leading to a denial of service. (CVE-2021-44832) Hideki Okamoto and Guy Lederfein discovered that Apache Log4j 2 did not protect against infinite recursion in lookup evaluation. A remote attacker could possibly use this issue to cause Apache Log4j 2 to crash, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2021-45105)

References: https://ubuntu.com/security/notices/USN-5222-1, https://ubuntu.com/security/CVE-2021-44832, https://ubuntu.com/security/CVE-2021-45105