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Ubuntu 14.04 ESM: USN-4110-2 Critical: Dovecot Denial of Service

ubuntu
Calendar Grey August 28, 2019
Dist Ubuntu Esm H88
Upgrade your Ubuntu installation to mitigate the Dovecot security risk that impacts certain versions and reinforce defenses against potential threats.
Dovecot could be made to crash or execute arbitrary code if it received a specially crafted data.

Summary

Dovecot could be made to crash or execute arbitrary code if it received

a specially crafted data.

Software Description:

- dovecot: IMAP and POP3 email server

Details:

USN-4110-1 fixed a vulnerability in Dovecot. This update provides

the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

Nick Roessler and Rafi Rubin discovered that Dovecot incorrectly

handled certain data. An attacker could possibly use this issue

to cause a denial of service or execute arbitrary code.

Topics%20covered

Topics Covered

security advisory denial of service arbitrary code execution ubuntu dovecot

Update Instructions

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

Ubuntu 14.04 ESM:
  dovecot-core                    1:2.2.9-1ubuntu2.6+esm1

Ubuntu 12.04 ESM:
  dovecot-core                    1:2.0.19-0ubuntu2.7

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

References

https://ubuntu.com/security/notices/USN-4110-2

https://ubuntu.com/security/notices/USN-4110-1

CVE-2019-11500

Severity
critical
Lowest
Low
Medium
High
Critical

August 28, 2019

Topics%20covered

Topics Covered

security advisory denial of service arbitrary code execution ubuntu dovecot

Package Information

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