=========================================================================Ubuntu Security Notice USN-4268-1
February 05, 2020

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

- Ubuntu 19.10
- Ubuntu 18.04 LTS

Summary:

OpenSMTPD could be made to run programs as root if it received specially
crafted input over the network.

Software Description:
- opensmtpd: secure, reliable, lean, and easy-to configure SMTP server

Details:

It was discovered that OpenSMTPD incorrectly verified the sender's or
receiver's e-mail addresses under certain conditions. An attacker could use
this vulnerability to execute arbitrary commands as root.

Update instructions:

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

Ubuntu 19.10:
  opensmtpd                       6.0.3p1-6ubuntu0.1

Ubuntu 18.04 LTS:
  opensmtpd                       6.0.3p1-1ubuntu0.1

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

References:
  https://ubuntu.com/security/notices/USN-4268-1
  CVE-2020-7247

Package Information:
  https://launchpad.net/ubuntu/+source/opensmtpd/6.0.3p1-6ubuntu0.1
  https://launchpad.net/ubuntu/+source/opensmtpd/6.0.3p1-1ubuntu0.1

Ubuntu 4268-1: OpenSMTPD vulnerability

February 5, 2020
OpenSMTPD could be made to run programs as root if it received specially crafted input over the network.

Summary

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10: opensmtpd 6.0.3p1-6ubuntu0.1 Ubuntu 18.04 LTS: opensmtpd 6.0.3p1-1ubuntu0.1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4268-1

CVE-2020-7247

Severity
February 05, 2020

Package Information

https://launchpad.net/ubuntu/+source/opensmtpd/6.0.3p1-6ubuntu0.1 https://launchpad.net/ubuntu/+source/opensmtpd/6.0.3p1-1ubuntu0.1

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