[USN-4621-1] netqmail vulnerabilities

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[USN-4621-1] netqmail vulnerabilities

Paulo Flabiano Smorigo
==========================================================================
Ubuntu Security Notice USN-4621-1
November 05, 2020

netqmail vulnerabilities
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

netqmail could be made to crash if it received specially crafted
input.

Software Description:
- netqmail: a secure, reliable, efficient, simple message transfer agent

Details:

It was discovered that netqmail did not properly handle certain input. Both
remote and local attackers could use this vulnerability to cause netqmail
to crash or execute arbitrary code. (CVE-2005-1513, CVE-2005-1514,
CVE-2005-1515)

It was discovered that netqmail did not properly handle certain input when
validating email addresses. An attacker could use this to bypass email
address validation. (CVE-2020-3811)

It was discovered that netqmail did not properly handle certain input when
validating email addresses. An attacker could use this vulnerability to
cause netqmail to disclose sensitive information. (CVE-2020-3812)

Update instructions:

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

Ubuntu 18.04 LTS:
  qmail                           1.06-6.2~deb10u1build0.18.04.1

Ubuntu 16.04 LTS:
  qmail                           1.06-6.2~deb10u1build0.16.04.1

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

References:
  https://usn.ubuntu.com/4621-1
  CVE-2005-1513, CVE-2005-1514, CVE-2005-1515, CVE-2020-3811,
  CVE-2020-3812

Package Information:
  https://launchpad.net/ubuntu/+source/netqmail/1.06-6.2~deb10u1build0.18.04.1
  https://launchpad.net/ubuntu/+source/netqmail/1.06-6.2~deb10u1build0.16.04.1

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