USN-3811-1: SpamAssassin vulnerabilities

Releases

• Ubuntu 18.04 ESM
• Ubuntu 16.04 ESM
• Ubuntu 14.04 ESM

Packages

• spamassassin - Perl-based spam filter using text analysis

Details

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)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04

• spamassassin - 3.4.2-0ubuntu0.18.04.1

Ubuntu 16.04

• spamassassin - 3.4.2-0ubuntu0.16.04.1

Ubuntu 14.04

• spamassassin - 3.4.2-0ubuntu0.14.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References

• CVE-2017-15705
• CVE-2018-11780
• CVE-2018-11781

Related notices

• USN-3811-2: spamassassin
• USN-3811-3: spamassassin