Dovecot 2.3.9.0/2.3.9.1/2.3.9.2 Submission-Login infinite loop

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Dovecot 2.3.9.0/2.3.9.1/2.3.9.2. The impacted element is an unknown function of the component Submission-Login. Such manipulation leads to infinite loop. This vulnerability is referenced as CVE-2020-7046. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Dovecot 2.3.9.0/2.3.9.1/2.3.9.2 (Mail Server Software) and classified as problematic. Affected by this issue is an unknown function of the component Submission-Login. The manipulation with an unknown input leads to a infinite loop vulnerability. Using CWE to declare the problem leads to CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. Impacted is availability. CVE summarizes:

lib-smtp in submission-login and lmtp in Dovecot 2.3.9 before 2.3.9.3 mishandles truncated UTF-8 data in command parameters, as demonstrated by the unauthenticated triggering of a submission-login infinite loop.

The weakness was published 02/12/2020 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2020-7046 since 01/14/2020. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 2.3.9.3 eliminates this vulnerability.

Similar entry is available at VDB-150081. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.8
VulDB Meta Temp Score: 6.7

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 7.5
CNA Vector (MITRE): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Dovecot 2.3.9.3

Timelineinfo

01/14/2020 🔍
02/12/2020 +29 days 🔍
02/13/2020 +1 days 🔍
03/30/2024 +1507 days 🔍

Sourcesinfo

Advisory: FEDORA-2020-0e6a67af5a
Status: Not defined

CVE: CVE-2020-7046 (🔍)
GCVE (CVE): GCVE-0-2020-7046
GCVE (VulDB): GCVE-100-150080
See also: 🔍

Entryinfo

Created: 02/13/2020 08:24
Updated: 03/30/2024 15:46
Changes: 02/13/2020 08:24 (39), 02/13/2020 08:29 (12), 03/30/2024 15:40 (17), 03/30/2024 15:46 (19)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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