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AUSCERT External Security Bulletin Redistribution
ESB-2020.0132
USN-4237-1: SpamAssassin vulnerabilities
14 January 2020
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AusCERT Security Bulletin Summary
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Product: SpamAssassin
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-12420 CVE-2018-11805
Reference: ESB-2020.0109
ESB-2019.4667.2
Original Bulletin:
https://usn.ubuntu.com/4237-1/
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USN-4237-1: SpamAssassin vulnerabilities
13 January 2020
spamassassin vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 19.10
o Ubuntu 19.04
o Ubuntu 18.04 LTS
o Ubuntu 16.04 LTS
Summary
Several security issues were fixed in SpamAssassin.
Software Description
o 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
To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .
In general, a standard system update will make all the necessary changes.
References
o CVE-2018-11805
o CVE-2019-12420
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