Vulnerabilities (CVE)

Filtered by vendor Wolfssl Subscribe
Total 66 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2022-38152 1 Wolfssl 1 Wolfssl 2024-11-21 N/A 7.5 HIGH
An issue was discovered in wolfSSL before 5.5.0. When a TLS 1.3 client connects to a wolfSSL server and SSL_clear is called on its session, the server crashes with a segmentation fault. This occurs in the second session, which is created through TLS session resumption and reuses the initial struct WOLFSSL. If the server reuses the previous session structure (struct WOLFSSL) by calling wolfSSL_clear(WOLFSSL* ssl) on it, the next received Client Hello (that resumes the previous session) crashes the server. Note that this bug is only triggered when resuming sessions using TLS session resumption. Only servers that use wolfSSL_clear instead of the recommended SSL_free; SSL_new sequence are affected. Furthermore, wolfSSL_clear is part of wolfSSL's compatibility layer and is not enabled by default. It is not part of wolfSSL's native API.
CVE-2022-34293 1 Wolfssl 1 Wolfssl 2024-11-21 N/A 7.5 HIGH
wolfSSL before 5.4.0 allows remote attackers to cause a denial of service via DTLS because a check for return-routability can be skipped.
CVE-2022-25640 1 Wolfssl 1 Wolfssl 2024-11-21 5.0 MEDIUM 7.5 HIGH
In wolfSSL before 5.2.0, a TLS 1.3 server cannot properly enforce a requirement for mutual authentication. A client can simply omit the certificate_verify message from the handshake, and never present a certificate.
CVE-2022-25638 1 Wolfssl 1 Wolfssl 2024-11-21 4.3 MEDIUM 6.5 MEDIUM
In wolfSSL before 5.2.0, certificate validation may be bypassed during attempted authentication by a TLS 1.3 client to a TLS 1.3 server. This occurs when the sig_algo field differs between the certificate_verify message and the certificate message.
CVE-2022-23408 1 Wolfssl 1 Wolfssl 2024-11-21 6.4 MEDIUM 9.1 CRITICAL
wolfSSL 5.x before 5.1.1 uses non-random IV values in certain situations. This affects connections (without AEAD) using AES-CBC or DES3 with TLS 1.1 or 1.2 or DTLS 1.1 or 1.2. This occurs because of misplaced memory initialization in BuildMessage in internal.c.
CVE-2021-45939 1 Wolfssl 1 Wolfmqtt 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Subscribe).
CVE-2021-45938 1 Wolfssl 1 Wolfmqtt 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Unsubscribe).
CVE-2021-45937 1 Wolfssl 1 Wolfmqtt 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_WaitType and MqttClient_Connect).
CVE-2021-45936 1 Wolfssl 1 Wolfmqtt 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttDecode_Disconnect (called from MqttClient_DecodePacket and MqttClient_WaitType).
CVE-2021-45934 1 Wolfssl 1 Wolfmqtt 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow in MqttClient_DecodePacket (called from MqttClient_HandlePacket and MqttClient_WaitType).
CVE-2021-45933 1 Wolfssl 1 Wolfmqtt 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow (8 bytes) in MqttDecode_Publish (called from MqttClient_DecodePacket and MqttClient_HandlePacket).
CVE-2021-45932 1 Wolfssl 1 Wolfmqtt 2024-11-21 4.3 MEDIUM 5.5 MEDIUM
wolfSSL wolfMQTT 1.9 has a heap-based buffer overflow (4 bytes) in MqttDecode_Publish (called from MqttClient_DecodePacket and MqttClient_HandlePacket).
CVE-2021-44718 1 Wolfssl 1 Wolfssl 2024-11-21 N/A 5.9 MEDIUM
wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.
CVE-2021-3336 1 Wolfssl 1 Wolfssl 2024-11-21 6.8 MEDIUM 8.1 HIGH
DoTls13CertificateVerify in tls13.c in wolfSSL before 4.7.0 does not cease processing for certain anomalous peer behavior (sending an ED22519, ED448, ECC, or RSA signature without the corresponding certificate). The client side is affected because man-in-the-middle attackers can impersonate TLS 1.3 servers.
CVE-2021-38597 1 Wolfssl 1 Wolfssl 2024-11-21 4.3 MEDIUM 5.9 MEDIUM
wolfSSL before 4.8.1 incorrectly skips OCSP verification in certain situations of irrelevant response data that contains the NoCheck extension.
CVE-2021-37155 1 Wolfssl 1 Wolfssl 2024-11-21 7.5 HIGH 9.8 CRITICAL
wolfSSL 4.6.x through 4.7.x before 4.8.0 does not produce a failure outcome when the serial number in an OCSP request differs from the serial number in the OCSP response.
CVE-2021-24116 1 Wolfssl 1 Wolfssl 2024-11-21 4.0 MEDIUM 4.9 MEDIUM
In wolfSSL through 4.6.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.
CVE-2020-36177 1 Wolfssl 1 Wolfssl 2024-11-21 10.0 HIGH 9.8 CRITICAL
RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest size.
CVE-2020-24613 1 Wolfssl 1 Wolfssl 2024-11-21 4.9 MEDIUM 6.8 MEDIUM
wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers.
CVE-2020-24585 1 Wolfssl 1 Wolfssl 2024-11-21 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in the DTLS handshake implementation in wolfSSL before 4.5.0. Clear DTLS application_data messages in epoch 0 do not produce an out-of-order error. Instead, these messages are returned to the application.