Executive Summary

Summary
Title Dovecot vulnerabilities
Informations
Name USN-3587-1 First vendor Publication 2018-03-05
Vendor Ubuntu Last vendor Modification 2018-03-05
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:P/I:N/A:P)
Cvss Base Score 5.5 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

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

- Ubuntu 17.10 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in Dovecot.

Software Description: - dovecot: IMAP and POP3 email server

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)

Update instructions:

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

Ubuntu 17.10:
dovecot-core 1:2.2.27-3ubuntu1.3

Ubuntu 16.04 LTS:
dovecot-core 1:2.2.22-1ubuntu2.7

Ubuntu 14.04 LTS:
dovecot-core 1:2.2.9-1ubuntu2.4

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

References:
https://usn.ubuntu.com/usn/usn-3587-1
CVE-2017-14461, CVE-2017-15130

Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.27-3ubuntu1.3
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.22-1ubuntu2.7
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.9-1ubuntu2.4

Original Source

Url : http://www.ubuntu.com/usn/USN-3587-1

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-200 Information Exposure
50 % CWE-125 Out-of-bounds Read

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 139
Os 3
Os 2
Os 3

Snort® IPS/IDS

Date Description
2020-12-05 TRUFFLEHUNTER TALOS-2017-0510 attack attempt
RuleID : 52247 - Revision : 1 - Type : SERVER-OTHER
2017-12-21 TRUFFLEHUNTER TALOS-2017-0510 attack attempt
RuleID : 45248 - Revision : 2 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2018-04-02 Name : The remote Debian host is missing a security update.
File : debian_DLA-1333.nasl - Type : ACT_GATHER_INFO
2018-03-05 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-4130.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2018-04-04 09:21:34
  • Multiple Updates
2018-03-22 17:21:24
  • Multiple Updates
2018-03-21 17:21:15
  • Multiple Updates
2018-03-05 17:19:52
  • First insertion