#VU76239 Infinite loop in node-jose - CVE-2023-25653

Vulnerability identifier: #VU76239

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-25653

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
node-jose
Universal components / Libraries / Libraries used by multiple products

Vendor: Cisco Systems, Inc

Description

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

The vulnerability exists due to a possible infinite loop in an internal calculation when using the non-default "fallback" crypto back-end. A remote attacker can consume all available system resources and cause denial of service conditions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

node-jose: before 2.2.0

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External links
https://github.com/cisco/node-jose/commit/901d91508a70e3b9bdfc45688ea07bb4e1b8210d
https://github.com/cisco/node-jose/security/advisories/GHSA-5h4j-qrvg-9xhw

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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.