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AUSCERT External Security Bulletin Redistribution
ESB-2019.2020
USN-4010-1: Exim vulnerability
6 June 2019
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AusCERT Security Bulletin Summary
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Product: exim4
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-10149
Reference: ESB-2019.2018
Original Bulletin:
https://usn.ubuntu.com/4010-1/
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USN-4010-1: Exim vulnerability
5 June 2019
exim4 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
o Ubuntu 18.10
o Ubuntu 18.04 LTS
Summary
Exim could be made to run commands if it received specially crafted network
traffic.
Software Description
o exim4 - Exim is a mail transport agent
Details
It was discovered that Exim incorrectly handled certain decoding operations. A
remote attacker could possibly use this issue to execute arbitrary commands.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.10
exim4-daemon-heavy - 4.91-6ubuntu1.1
exim4-daemon-light - 4.91-6ubuntu1.1
Ubuntu 18.04 LTS
exim4-daemon-heavy - 4.90.1-1ubuntu1.2
exim4-daemon-light - 4.90.1-1ubuntu1.2
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-2019-10149
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