lestrrat

4 exploits Active since Dec 2023
CVE-2024-21664 WRITEUP MEDIUM WRITEUP
lestrrat-go/jwx < 2.0.19 and 1.0.8-1.2.28 - Denial of Service via JWS Parse Nil Pointer Dereference
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 4.3
CVE-2024-21664 WRITEUP MEDIUM WRITEUP
lestrrat-go/jwx < 2.0.19 and 1.0.8-1.2.28 - Denial of Service via JWS Parse Nil Pointer Dereference
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 4.3
CVE-2023-49290 WRITEUP MEDIUM WRITEUP
lestrrat-go/jwx <1.2.27 and <2.0.18 - Denial of Service via JWE p2c Parameter
lestrrat-go/jwx is a Go module implementing various JWx (JWA/JWE/JWK/JWS/JWT, otherwise known as JOSE) technologies. A p2c parameter set too high in JWE's algorithm PBES2-* could lead to a denial of service. The JWE key management algorithms based on PBKDF2 require a JOSE Header Parameter called p2c (PBES2 Count). This parameter dictates the number of PBKDF2 iterations needed to derive a CEK wrapping key. Its primary purpose is to intentionally slow down the key derivation function, making password brute-force and dictionary attacks more resource- intensive. Therefore, if an attacker sets the p2c parameter in JWE to a very large number, it can cause a lot of computational consumption, resulting in a denial of service. This vulnerability has been addressed in commit `64f2a229b` which has been included in release version 1.2.27 and 2.0.18. Users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS 5.3
CVE-2024-21664 WRITEUP MEDIUM WRITEUP
lestrrat-go/jwx < 2.0.19 and 1.0.8-1.2.28 - Denial of Service via JWS Parse Nil Pointer Dereference
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 4.3