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OLD VERSION OF JAVA 7 UPDATE 45 UPGRADE
OLD VERSION OF JAVA 7 UPDATE 45 SOFTWARE
OLD VERSION OF JAVA 7 UPDATE 45 CODE

CVE-2021-45105 (CVSS score: 7.5) - A denial-of-service vulnerability affecting Log4j versions from 2.0-beta9 to 2.16.0 (Fixed in version 2.17.0).

OLD VERSION OF JAVA 7 UPDATE 45 CODE

CVE-2021-45046 (CVSS score: 9.0) - An information leak and remote code execution vulnerability affecting Log4j versions from 2.0-beta9 to 2.15.0, excluding 2.12.2 (Fixed in version 2.16.0).

CVE-2021-44228 (CVSS score: 10.0) - A remote code execution vulnerability affecting Log4j versions from 2.0-beta9 to 2.14.1 (Fixed in version 2.15.0).

With the latest fix, the project maintainers have addressed a total of four issues in Log4j since the Log4Shell flaw came to light earlier this month, not to mention a fifth vulnerability affecting versions Log4j 1.2 that will not be fixed. "Unlike Logback, in Log4j there is a feature to load a remote configuration file or to configure the logger through the code, so an arbitrary code execution could be achieved with MitM attack, user input ending up in a vulnerable configuration variable, or modifying the config file." "The complexity of this vulnerability is higher than the original CVE-2021-44228 since it requires the attacker to have control over the configuration," Nizry noted. "This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2."Īlthough no credits were awarded by the ASF for the issue, Checkmarx security researcher Yaniv Nizry claimed credit for reporting the vulnerability to Apache on December 27. "Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack where an attacker with permission to modify the logging configuration file can construct a malicious configuration using a JDBC Appender with a data source referencing a JNDI URI which can execute remote code," the ASF said in an advisory.

OLD VERSION OF JAVA 7 UPDATE 45 UPGRADE

While Log4j versions 1.x are not affected, users are recommended to upgrade to Log4j 2.3.2 (for Java 6), 2.12.4 (for Java 7), or 2.17.1 (for Java 8 and later). Tracked as CVE-2021-44832, the vulnerability is rated 6.6 in severity on a scale of 10 and impacts all versions of the logging library from 2.0-alpha7 to 2.17.0 with the exception of 2.3.2 and 2.12.4.

OLD VERSION OF JAVA 7 UPDATE 45 SOFTWARE

The Apache Software Foundation (ASF) on Tuesday rolled out fresh patches to contain an arbitrary code execution flaw in Log4j that could be abused by threat actors to run malicious code on affected systems, making it the fifth security shortcoming to be discovered in the tool in the span of a month.