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Ubuntu: USN-3811-1 Critical: SpamAssassin Remote Code Execution Issues

ubuntu
Calendar Grey November 6, 2018
Dist Ubuntu Esm H88
Numerous security weaknesses in SpamAssassin were mitigated in Ubuntu's security announcement USN-3811-1 dated November 6, 2018.
Several security issues were fixed in SpamAssassin.

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)

Topics%20covered

Topics Covered

security advisory denial of service security update arbitrary code execution ubuntu spamassassin

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://ubuntu.com/security/notices/USN-3811-1

CVE-2017-15705, CVE-2018-11780, CVE-2018-11781

Severity
critical
Lowest
Low
Medium
High
Critical

November 06, 2018

Topics%20covered

Topics Covered

security advisory denial of service security update arbitrary code execution ubuntu spamassassin

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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