==========================================================================
Ubuntu Security Notice USN-3811-1
November 06, 2018
spamassassin vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in SpamAssassin.
Software Description:
– 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 LTS:
spamassassin 3.4.2-0ubuntu0.18.04.1
Ubuntu 16.04 LTS:
spamassassin 3.4.2-0ubuntu0.16.04.1
Ubuntu 14.04 LTS:
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:
https://usn.ubuntu.com/usn/usn-3811-1
CVE-2017-15705, CVE-2018-11780, CVE-2018-11781
Package Information:
https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.14.04.1
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