CVE-2024-21664

MEDIUM
Published Jan 9, 2024 Modified Nov 21, 2024 CWE-476

Description

jwx is a Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies. Calling `jws.Parse` with a JSON serialized payload where the `signature` field is present while `protected` is absent can lead to a nil pointer dereference. The vulnerability can be used to crash/DOS a system doing JWS verification. This vulnerability has been patched in versions 2.0.19 and 1.2.28.

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CVSS v3.1 Score

4.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor Product
lestrrat-go jwx

References

Frequently Asked Questions

What is CVE-2024-21664? +
jwx is a Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies. Calling `jws.Parse` with a JSON serialized payload where the `signature` field is present while `protected` is absent can lead to a nil pointer dereference. The vulnerability can be used to crash/DOS a system doing JWS verification. This vulnerability has been patched in versions 2.0.19 and 1.2.28. It has a CVSS v3.1 base score of 4.3 (MEDIUM).
How severe is CVE-2024-21664? +
CVE-2024-21664 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-21664? +
CVE-2024-21664 affects products from lestrrat-go, specifically: jwx. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-21664? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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