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Ubuntu 12.04 ESM: USN-3587-2 Dovecot Denial of Service Vulnerability

ubuntu
Calendar Grey April 2, 2018
Scroller Ubuntu Esm H88
Corrections for Dovecot vulnerabilities impacting Ubuntu 12.04 ESM published on April 02, 2018, to maintain system integrity.
Several security issues were fixed in Dovecot.

Summary

Several security issues were fixed in Dovecot.

Software Description:

- dovecot: IMAP and POP3 email server

Details:

USN-3587-1 fixed a vulnerability in Dovecot. This update provides

the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

 It was discovered that Dovecot incorrectly handled parsing certain

 email addresses. A remote attacker could use this issue to cause

 Dovecot to crash, resulting in a denial of service, or possibly obtain

 sensitive information. (CVE-2017-14461)

 It was discovered that Dovecot incorrectly handled TLS SNI config

 lookups. A remote attacker could possibly use this issue to cause

 Dovecot to crash, resulting in a denial of service. (CVE-2017-15130)

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu Dovecot email server

Update Instructions

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

Ubuntu 12.04 ESM:
  dovecot-core                    1:2.0.19-0ubuntu2.5

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

References

  https://ubuntu.com/security/notices/USN-3587-2

  https://ubuntu.com/security/notices/USN-3587-1

  CVE-2017-14461, CVE-2017-15130

Severity
critical
Lowest
Low
Medium
High
Critical

April 02, 2018

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu Dovecot email server

Package Information

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