regexfn 1.0.5 Email incorrect regex

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in regexfn 1.0.5. The affected element is an unknown function of the component Email Handler. This manipulation causes incorrect regex. This vulnerability appears as CVE-2021-40900. There is no available exploit.

Detailsinfo

A vulnerability was found in regexfn 1.0.5. It has been declared as problematic. Affected by this vulnerability is some unknown functionality of the component Email Handler. The manipulation with an unknown input leads to a incorrect regex vulnerability. The CWE definition for the vulnerability is CWE-185. The product specifies a regular expression in a way that causes data to be improperly matched or compared. As an impact it is known to affect availability. The summary by CVE is:

A Regular Expression Denial of Service (ReDOS) vulnerability was discovered in regexfn v1.0.5 when validating crafted invalid emails.

The weakness was presented 06/27/2022. The advisory is shared at github.com. This vulnerability is known as CVE-2021-40900 since 09/13/2021. Neither technical details nor an exploit are publicly available.

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

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Incorrect regex
CWE: CWE-185 / CWE-697
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

09/13/2021 🔍
06/27/2022 +287 days 🔍
06/27/2022 +0 days 🔍
07/15/2022 +18 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2021-40900 (🔍)
GCVE (CVE): GCVE-0-2021-40900
GCVE (VulDB): GCVE-100-202813

Entryinfo

Created: 06/27/2022 17:34
Updated: 07/15/2022 15:28
Changes: 06/27/2022 17:34 (37), 07/15/2022 15:28 (18)
Complete: 🔍
Cache ID: 216::103

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