NULL pointer dereference in jwx - CVE-2024-21664
Published: December 13, 2024
Vulnerability identifier: #VU101763
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2024-21664
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: lestrrat-go
Affected software:
jwx
jwx
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when calling `jws.Parse` with a JSON serialized payload where the `signature` field is present while `protected` is absent. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
How to mitigate CVE-2024-21664
Install updates from vendor's website.
Sources
- 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://github.com/lestrrat-go/jwx/commit/8c53d0ae52d5ab1e2b37c5abb67def9e7958fd65