PT-2021-19949 · Protonmail · Protonmail Web Client

Erik Krogh Kristensen + 1 · Published 2021-05-14 · Updated 2021-05-24 · CVE-2021-32816

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ProtonMail Web Client versions prior to 3.16.60

Description The issue is a regular expression denial-of-service problem. It was fixed in a specific commit. A full report is available.

Recommendations For versions prior to 3.16.60, update to version 3.16.60 or later to resolve the issue.

Exploit

Fix

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2021-32816

Affected Products

Protonmail Web Client

References · 5

• 🔥 https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail · Exploit
• https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddc · Patch
• https://osv.dev/vulnerability/CVE-2021-32816 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-32816 · Security Note
• https://t.me/cvenotify/14960 · Telegram Post