CVE-2024-21664mediumCWE-476

Parsing JSON serialized payload without protected field can lead to segfault

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 4.3epss 0.9%

exploitation probability

0.9%top 43% of all CVEs

observed exploitation

nono source reports it

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.

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

Affected products

lestrrat-go · jwx

References

https://github.com/lestrrat-go/jwx/commit/0e8802ce6842625845d651456493e7c87625601f https://github.com/lestrrat-go/jwx/commit/8c53d0ae52d5ab1e2b37c5abb67def9e7958fd65 https://github.com/lestrrat-go/jwx/commit/d69a721931a5c48b9850a42404f18e143704adcd https://github.com/lestrrat-go/jwx/security/advisories/GHSA-pvcr-v8j8-j5q3