Vulnerabilities (CVE)

Filtered by vendor Wolfssl Subscribe
Total 59 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-38597 1 Wolfssl 1 Wolfssl 2023-12-10 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-2021-3336 1 Wolfssl 1 Wolfssl 2023-12-10 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-2020-36177 1 Wolfssl 1 Wolfssl 2023-12-10 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-2020-15309 1 Wolfssl 1 Wolfssl 2023-12-10 6.9 MEDIUM 7.0 HIGH
An issue was discovered in wolfSSL before 4.5.0, when single precision is not employed. Local attackers can conduct a cache-timing attack against public key operations. These attackers may already have obtained sensitive information if the affected system has been used for private key operations (e.g., signing with a private key).
CVE-2020-24585 1 Wolfssl 1 Wolfssl 2023-12-10 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.
CVE-2020-11713 1 Wolfssl 1 Wolfssl 2023-12-10 5.0 MEDIUM 7.5 HIGH
wolfSSL 4.3.0 has mulmod code in wc_ecc_mulmod_ex in ecc.c that does not properly resist timing side-channel attacks.
CVE-2020-12457 1 Wolfssl 1 Wolfssl 2023-12-10 5.0 MEDIUM 7.5 HIGH
An issue was discovered in wolfSSL before 4.5.0. It mishandles the change_cipher_spec (CCS) message processing logic for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a crafted way involving more than one in a row, the server becomes stuck in the ProcessReply() loop, i.e., a denial of service.
CVE-2020-24613 1 Wolfssl 1 Wolfssl 2023-12-10 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-2020-11735 1 Wolfssl 1 Wolfssl 2023-12-10 5.0 MEDIUM 5.3 MEDIUM
The private-key operations in ecc.c in wolfSSL before 4.4.0 do not use a constant-time modular inverse when mapping to affine coordinates, aka a "projective coordinates leak."
CVE-2019-14317 1 Wolfssl 1 Wolfssl 2023-12-10 4.3 MEDIUM 5.3 MEDIUM
wolfSSL and wolfCrypt 4.1.0 and earlier (formerly known as CyaSSL) generate biased DSA nonces. This allows a remote attacker to compute the long term private key from several hundred DSA signatures via a lattice attack. The issue occurs because dsa.c fixes two bits of the generated nonces.
CVE-2014-2896 1 Wolfssl 1 Wolfssl 2023-12-10 7.5 HIGH 9.8 CRITICAL
The DoAlert function in the (1) TLS and (2) DTLS implementations in wolfSSL CyaSSL before 2.9.4 allows remote attackers to have unspecified impact and vectors, which trigger memory corruption or an out-of-bounds read.
CVE-2019-13628 1 Wolfssl 1 Wolfssl 2023-12-10 1.2 LOW 4.7 MEDIUM
wolfSSL and wolfCrypt 4.0.0 and earlier (when configured without --enable-fpecc, --enable-sp, or --enable-sp-math) contain a timing side channel in ECDSA signature generation. This allows a local attacker, able to precisely measure the duration of signature operations, to infer information about the nonces used and potentially mount a lattice attack to recover the private key used. The issue occurs because ecc.c scalar multiplication might leak the bit length.
CVE-2014-2897 1 Wolfssl 1 Wolfssl 2023-12-10 7.5 HIGH 9.8 CRITICAL
The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows remote attackers to have unspecified impact via a crafted HMAC, which triggers an out-of-bounds read.
CVE-2014-2901 1 Wolfssl 1 Wolfssl 2023-12-10 5.0 MEDIUM 7.5 HIGH
wolfssl before 3.2.0 does not properly issue certificates for a server's hostname.
CVE-2019-18840 1 Wolfssl 1 Wolfssl 2023-12-10 5.0 MEDIUM 7.5 HIGH
In wolfSSL 4.1.0 through 4.2.0c, there are missing sanity checks of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer overflow inside the DecodedCert structure in GetName in wolfcrypt/src/asn.c because the domain name location index is mishandled. Because a pointer is overwritten, there is an invalid free.
CVE-2019-16748 1 Wolfssl 1 Wolfssl 2023-12-10 7.5 HIGH 9.8 CRITICAL
In wolfSSL through 4.1.0, there is a missing sanity check of memory accesses in parsing ASN.1 certificate data while handshaking. Specifically, there is a one-byte heap-based buffer over-read in CheckCertSignature_ex in wolfcrypt/src/asn.c.
CVE-2014-2898 1 Wolfssl 1 Wolfssl 2023-12-10 7.5 HIGH 9.8 CRITICAL
wolfSSL CyaSSL before 2.9.4 allows remote attackers to have unspecified impact via multiple calls to the CyaSSL_read function which triggers an out-of-bounds read when an error occurs, related to not checking the return code and MAC verification failure.
CVE-2014-2904 1 Wolfssl 1 Wolfssl 2023-12-10 5.0 MEDIUM 7.5 HIGH
wolfssl before 3.2.0 has a server certificate that is not properly authorized for server authentication.
CVE-2019-19962 1 Wolfssl 1 Wolfssl 2023-12-10 5.0 MEDIUM 7.5 HIGH
wolfSSL before 4.3.0 mishandles calls to wc_SignatureGenerateHash, leading to fault injection in RSA cryptography.
CVE-2019-19960 1 Wolfssl 1 Wolfssl 2023-12-10 4.3 MEDIUM 5.3 MEDIUM
In wolfSSL before 4.3.0, wc_ecc_mulmod_ex does not properly resist side-channel attacks.