Vulnerability identifier: #VU80336

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-23341

CWE-ID: CWE-185

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
prism
Other software / Other software solutions

Vendor:

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation when processing regular expressions. A remote attacker can pass specially crafted data to the application and perform regular expression denial of service (ReDos) attack.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability..

Vulnerable software versions

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External links
http://github.com/PrismJS/prism/commit/c2f6a64426f44497a675cb32dccb079b3eff1609
http://github.com/PrismJS/prism/issues/2583
http://github.com/PrismJS/prism/pull/2584
http://snyk.io/vuln/SNYK-JAVA-ORGWEBJARS-1076583
http://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076582
http://snyk.io/vuln/SNYK-JS-PRISMJS-1076581

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.