CVE-2021-32816: Regular expression Denial of Service in ProtonMail

Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2021-32816

Vulnerability Information

Have questions about the vulnerability? See if Shenlong's analysis helps!

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title

Regular expression Denial of Service in ProtonMail

Source: NVD (National Vulnerability Database)

Vulnerability Description

ProtonMail Web Client is the official AngularJS web client for the ProtonMail secure email service. ProtonMail Web Client before version 3.16.60 has a regular expression denial-of-service vulnerability. This was fixed in commit 6687fb. There is a full report available in the referenced GHSL-2021-027.

Source: NVD (National Vulnerability Database)

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Source: NVD (National Vulnerability Database)

Vulnerability Type

未加控制的资源消耗(资源穷尽)

Source: NVD (National Vulnerability Database)

Vulnerability Title

AngularJS ProtonMail Web Client 资源管理错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

AngularJS是一款基于TypeScript的开源Web应用程序框架。ProtonMail Web Client是AngularJS Web 客户端。 AngularJS ProtonMail Web Client 存在资源管理错误漏洞，该漏洞源于存在正则表达式拒绝服务漏洞。

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
ProtonMail	WebClient	< 3.16.60	-

II. Public POCs for CVE-2021-32816

#	POC Description	Source Link	Shenlong Link

AI-Generated POCPremium

No public POC found.

III. Intelligence Information for CVE-2021-32816

Please Login to view more intelligence information

https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddcx_refsource_MISC
https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail/x_refsource_CONFIRM
https://nvd.nist.gov/vuln/detail/CVE-2021-32816

IV. Related Vulnerabilities

Same weakness: CWE-400

V. Comments for CVE-2021-32816

No comments yet

Goal Reached Thanks to every supporter — we hit 100%!

I. Basic Information for CVE-2021-32816

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2021-32816

III. Intelligence Information for CVE-2021-32816

IV. Related Vulnerabilities

V. Comments for CVE-2021-32816

Leave a comment