Claws Mail up to 3.17.6 IMAP Server imap_scan_tree_recursive recursion

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Claws Mail up to 3.17.6. This vulnerability affects the function imap_scan_tree_recursive of the component IMAP Server Handler. Executing a manipulation can lead to recursion. This vulnerability appears as CVE-2020-16094. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Claws Mail up to 3.17.6 (Mail Client Software). It has been declared as critical. This vulnerability affects the function imap_scan_tree_recursive of the component IMAP Server Handler. The manipulation with an unknown input leads to a recursion vulnerability. The CWE definition for the vulnerability is CWE-674. The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In imap_scan_tree_recursive in Claws Mail through 3.17.6, a malicious IMAP server can trigger stack consumption because of unlimited recursion into subdirectories during a rebuild of the folder tree.

The weakness was presented 07/28/2020. This vulnerability was named CVE-2020-16094 since 07/28/2020. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Recursion
CWE: CWE-674 / 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/28/2020 🔍
07/28/2020 +0 days 🔍
07/30/2020 +2 days 🔍
07/30/2020 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2020-16094 (🔍)
GCVE (CVE): GCVE-0-2020-16094
GCVE (VulDB): GCVE-100-159118

Entryinfo

Created: 07/30/2020 08:01
Updated: 07/30/2020 08:06
Changes: 07/30/2020 08:01 (35), 07/30/2020 08:06 (18)
Complete: 🔍
Cache ID: 216::103

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