PT-2021-21938 · Prism+1 · Prism+1

Published 2021-09-15 · Updated 2022-07-29 · CVE-2021-3801

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: Prism (affected versions not specified)

Description: The issue concerns Inefficient Regular Expression Complexity, also known as ReDoS (regular expression denial of service). An attacker can cause an application to consume excessive CPU by providing a crafted HTML comment as input. This is related to the prismjs package, a syntax highlighting library.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Resource Exhaustion

Weakness Enumeration

CWE-1333

CWE-400

Related Identifiers

CVE-2021-3801

GHSA-HQHP-5P83-HX96

Affected Products

Prism

Prismjs

References · 14

• 🔥 https://huntr.dev/bounties/8c16ab31-6eb6-46d1-b9a4-387222fe1b8a · Exploit
• https://github.com/prismjs/prism/commit/0ff371bb4775a131634f47d0fe85794c547232f9 · Patch
• https://osv.dev/vulnerability/GHSA-hqhp-5p83-hx96 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-3801 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-3801 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-3801 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-3801 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-3801 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-3801 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-3801 · Vendor Advisory
• https://github.com/prismjs/prism · Note
• https://t.me/cvenotify/20888 · Telegram Post
• https://t.me/cibsecurity/28885 · Telegram Post
• https://t.me/cvenotify/21546 · Telegram Post