Vulnerability identifier: #VU67974

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-2022-25858

CWE-ID: CWE-185

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
terser
Web applications / JS libraries

Vendor: Terser

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
Install update from vendor's website.

Vulnerable software versions

terser: 5.14.0 - 5.14.1, 5.13.0 - 5.13.1, 5.12.0 - 5.12.1, 5.11.0, 5.10.0, 5.9.0, 5.8.0, 5.7.0 - 5.7.2, 5.6.0 - 5.6.1, 5.5.0 - 5.5.1, 5.4.0, 5.3.0 - 5.3.8, 5.2.0 - 5.2.1, 5.1.0, 5.0.0, 4.8.0, 4.7.0, 4.6.0 - 4.6.13, 4.5.0 - 4.5.1, 4.4.0 - 4.4.3, 4.3.0 - 4.3.11, 4.2.0 - 4.2.1, 4.1.0 - 4.1.4, 4.0.0 - 4.0.2

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External links
http://github.com/terser/terser/commit/a4da7349fdc92c05094f41d33d06d8cd4e90e76b
http://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-2949722
http://github.com/terser/terser/commit/d8cc5691be980d663c29cc4d5ce67e852d597012
http://snyk.io/vuln/SNYK-JS-TERSER-2806366
http://github.com/terser/terser/blob/master/lib/compress/evaluate.js%23L135

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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.