CVE-2024-21664
Parsing JSON serialized payload without protected field can lead to segfault
- State
- Published
- Severity
- 4.3 Medium
- Published
- Jan 9, 2024
- Updated
- Jun 17, 2025
- Reserved
- Dec 29, 2023
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 4.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L | GitHub_M |
Weaknesses
- CWE-476 NULL Pointer Dereference
Affected Products
| Product | Versions |
|---|---|
jwxlestrrat-go |
|
References
- 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/8c53d0ae52d5ab1e2b37c5abb67def9e7958fd65
- https://github.com/lestrrat-go/jwx/commit/d69a721931a5c48b9850a42404f18e143704adcd
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