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Ubuntu 18.04 LTS and 18.10: USN-4010-1 Moderate: Exim Command Execution

ubuntu
Calendar Grey June 5, 2019
Dist Ubuntu Esm H88
Certain vulnerabilities in Exim may allow command execution through malformed network packets. Regular updates are crucial for maintaining the security of Ubuntu installations.
Exim could be made to run commands if it received specially crafted network traffic.

Summary

Exim could be made to run commands if it received specially crafted network

traffic.

Software Description:

- 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.

Topics%20covered

Topics Covered

security advisory command execution Ubuntu network attack exim4

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

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

References

https://ubuntu.com/security/notices/USN-4010-1

CVE-2019-10149

June 05, 2019

Topics%20covered

Topics Covered

security advisory command execution Ubuntu network attack exim4

Package Information

https://launchpad.net/ubuntu/+source/exim4/4.91-6ubuntu1.1
https://launchpad.net/ubuntu/+source/exim4/4.90.1-1ubuntu1.2

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