Several security issues were fixed in SpamAssassin.
It was discovered that SpamAssassin incorrectly handled certain unclosed tags in emails. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2017-15705)
6 November 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in SpamAssassin.
It was discovered that SpamAssassin incorrectly handled certain unclosed tags in emails. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2017-15705)
It was discovered that SpamAssassin incorrectly handled the PDFInfo plugin. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11780)
It was discovered that SpamAssassin incorrectly handled meta rule syntax. A local attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11781)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes.