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CVE-2024-21664

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Date: January 9, 2024

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.

Language: Go

Severity Score

Related Resources (6)

https://github.com/lestrrat-go/jwx/security/advisories/GHSA-pvcr-v8j8-j5q3
https://github.com/lestrrat-go/jwx/commit/0e8802ce6842625845d651456493e7c87625601f
https://github.com/lestrrat-go/jwx/commit/d69a721931a5c48b9850a42404f18e143704adcd
https://nvd.nist.gov/vuln/detail/CVE-2024-21664
https://github.com/lestrrat-go/jwx/commit/8c53d0ae52d5ab1e2b37c5abb67def9e7958fd65
https://www.mend.io/vulnerability-database/CVE-2024-21664

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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