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Ubuntu Security Notice USN-4237-1

Ubuntu Security Notice USN-4237-1
Posted Jan 13, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4237-1 - It was discovered that SpamAssassin incorrectly handled certain CF files. If a user or automated system were tricked into using a specially-crafted CF file, a remote attacker could possibly run arbitrary code. It was discovered that SpamAssassin incorrectly handled certain messages. A remote attacker could possibly use this issue to cause SpamAssassin to consume resources, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-11805, CVE-2019-12420
MD5 | 1b87df95a40747a665d19b9114b4397a

Ubuntu Security Notice USN-4237-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-4237-1
January 13, 2020

spamassassin vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10
- Ubuntu 19.04
- Ubuntu 18.04 LTS
- Ubuntu 16.04 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 CF files.
If a user or automated system were tricked into using a specially-crafted
CF file, a remote attacker could possibly run arbitrary code.
(CVE-2018-11805)

It was discovered that SpamAssassin incorrectly handled certain messages.
A remote attacker could possibly use this issue to cause SpamAssassin to
consume resources, resulting in a denial of service. (CVE-2019-12420)

Update instructions:

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

Ubuntu 19.10:
spamassassin 3.4.2-1ubuntu0.19.10.1

Ubuntu 19.04:
spamassassin 3.4.2-1ubuntu0.19.04.1

Ubuntu 18.04 LTS:
spamassassin 3.4.2-0ubuntu0.18.04.2

Ubuntu 16.04 LTS:
spamassassin 3.4.2-0ubuntu0.16.04.2

In general, a standard system update will make all the necessary changes.

References:
https://usn.ubuntu.com/4237-1
CVE-2018-11805, CVE-2019-12420

Package Information:
https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-1ubuntu0.19.10.1
https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-1ubuntu0.19.04.1
https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.18.04.2
https://launchpad.net/ubuntu/+source/spamassassin/3.4.2-0ubuntu0.16.04.2

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