(RHSA-2017:2636) Important: Red Hat JBoss Enterprise Application Platform 6.4.17 update on RHEL 7

Red Hat JBoss Enterprise Application Platform is a platform for Java applications based on the JBoss Application Server.

This release of Red Hat JBoss Enterprise Application Platform 6.4.17 serves as a replacement for Red Hat JBoss Enterprise Application Platform 6.4.16, and includes bug fixes and enhancements, which are documented in the Release Notes document linked to in the References.

Security Fix(es):

• It was found that when using remote logging with log4j socket server the log4j server would deserialize any log event received via TCP or UDP. An attacker could use this flaw to send a specially crafted log event that, during deserialization, would execute arbitrary code in the context of the logger application. (CVE-2017-5645)

• A vulnerability was discovered in the error page mechanism in Tomcat’s DefaultServlet implementation. A crafted HTTP request could cause undesired side effects, possibly including the removal or replacement of the custom error page. (CVE-2017-5664)

• A deserialization flaw was discovered in the jackson-databind which could allow an unauthenticated user to perform code execution by sending the maliciously crafted input to the readValue method of the ObjectMapper. (CVE-2017-7525)

Red Hat would like to thank Liao Xinxi (NSFOCUS) for reporting CVE-2017-7525.