Processing malformed PNG by incoming mail handler causes OOM and blocks queue

panel:bgColor=e7f4fa NOTE: This bug report is for JIRA Server. Using JIRA Cloud? See the corresponding bug report|http://jira.atlassian.com/browse/JRACLOUD-38028. panel There are two problems: 1. OOM 2. Incoming email processing is blocked Looks like this is similar problem to JRA-35816, fixed in...