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Ubuntu 19.04 Exim: USN-4141-1 Critical Denial Of Service Advisory

ubuntu
Calendar Grey September 28, 2019
Dist Ubuntu Esm H88
A severe vulnerability has been found in the Exim mail server on Ubuntu 19.04, risking system instability or malicious script execution. Immediate patching is advised
Exim could be made to crash or run programs if it received specially crafted network traffic.

Summary

Exim could be made to crash or run programs 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 string operations.

A remote attacker could use this issue to cause Exim to crash, resulting in

a denial of service, or possibly execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service exim Ubuntu network issue

Update Instructions

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

Ubuntu 19.04:
  exim4-daemon-heavy              4.92-4ubuntu1.4
  exim4-daemon-light              4.92-4ubuntu1.4

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

References

https://ubuntu.com/security/notices/USN-4141-1

CVE-2019-16928

Severity
critical
Lowest
Low
Medium
High
Critical

September 28, 2019

Topics%20covered

Topics Covered

security advisory denial of service exim Ubuntu network issue

Package Information

https://launchpad.net/ubuntu/+source/exim4/4.92-4ubuntu1.4

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