Dovecot SMTP Delivery Email Message out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Dovecot. It has been rated as critical. Impacted is an unknown function of the component SMTP Delivery. Performing a manipulation as part of Email Message results in out-of-bounds. This vulnerability is cataloged as CVE-2017-14461. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Dovecot (Mail Server Software) (version unknown). It has been classified as critical. This affects an unknown function of the component SMTP Delivery. The manipulation as part of a Email Message leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A specially crafted email delivered over SMTP and passed on to Dovecot by MTA can trigger an out of bounds read resulting in potential sensitive information disclosure and denial of service. In order to trigger this vulnerability, an attacker needs to send a specially crafted email message to the server.

The bug was discovered 03/01/2018. The weakness was shared 03/02/2018 by Aleksandar Nikolic with Cisco Talos (Website). The advisory is shared at dovecot.org. This vulnerability is uniquely identified as CVE-2017-14461 since 09/13/2017. The exploitability is told to be easy. It is possible to initiate the attack remotely. The successful exploitation requires a authentication. Neither technical details nor an exploit are publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 108767 (Debian DLA-1333-1 : dovecot security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197070 (Ubuntu Security Notification for Dovecot Vulnerabilities (USN-3587-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (108767) and SecurityFocus (BID 103201†). The entries VDB-112447 and VDB-114012 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector (Talos): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 108767
Nessus Name: Debian DLA-1333-1 : dovecot security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 831684
OpenVAS Name: Debian Security Advisory DSA 4130-1 (dovecot - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

09/13/2017 🔍
03/01/2018 +169 days 🔍
03/01/2018 +0 days 🔍
03/02/2018 +1 days 🔍
03/02/2018 +0 days 🔍
03/03/2018 +1 days 🔍
03/31/2018 +28 days 🔍
04/02/2018 +2 days 🔍
02/16/2023 +1781 days 🔍

Sourcesinfo

Advisory: USN-3587-1
Researcher: Aleksandar Nikolic
Organization: Cisco Talos
Status: Confirmed

CVE: CVE-2017-14461 (🔍)
GCVE (CVE): GCVE-0-2017-14461
GCVE (VulDB): GCVE-100-114009

OVAL: 🔍

SecurityFocus: 103201 - Dovecot CVE-2017-14461 Out-Of-Bounds Read Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 03/03/2018 14:25
Updated: 02/16/2023 14:17
Changes: 03/03/2018 14:25 (76), 01/10/2020 07:37 (7), 02/16/2023 14:12 (4), 02/16/2023 14:17 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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