Amazon Linux AMI Security Advisory: ALAS-2018-1091
Advisory Release Date: 2018-10-17 21:58 Pacific
Advisory Updated Date: 2018-10-18 22:19 Pacific
A flaw was found in the way a local user on the SpamAssassin server could inject code in the meta rule syntax. This could cause the arbitrary code execution on the server when these rules are being processed.(CVE-2018-11781)
A potential Remote Code Execution bug exists with the PDFInfo plugin in Apache SpamAssassin before 3.4.2.(CVE-2018-11780)
A flaw was found in the way SpamAssassin processes HTML email containing unclosed HTML tags. A carefully crafted mail message could cause SpamAssassin to consume significant resources. If a large number of these messages are sent, a denial of service could occur potentially delaying or preventing the delivery of email.(CVE-2017-15705)
Run yum update spamassassin to update your system.