Vulnerabilities (CVE)

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Filtered by vendor Wolfssl Subscribe
Filtered by product Wolfssl
Total 50 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-14317 1 Wolfssl 1 Wolfssl 2021-07-21 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-2019-19962 1 Wolfssl 1 Wolfssl 2021-07-21 5.0 MEDIUM 7.5 HIGH
wolfSSL before 4.3.0 mishandles calls to wc_SignatureGenerateHash, leading to fault injection in RSA cryptography.
CVE-2020-11735 1 Wolfssl 1 Wolfssl 2021-07-21 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-2021-3336 1 Wolfssl 1 Wolfssl 2021-03-04 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 2021-01-12 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 2020-09-01 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 2020-08-26 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-2019-6439 1 Wolfssl 1 Wolfssl 2020-08-24 7.5 HIGH 9.8 CRITICAL
examples/benchmark/tls_bench.c in a benchmark tool in wolfSSL through 3.15.7 has a heap-based buffer overflow.
CVE-2014-2896 1 Wolfssl 1 Wolfssl 2020-02-04 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-2014-2897 1 Wolfssl 1 Wolfssl 2020-02-04 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-2014-2898 1 Wolfssl 1 Wolfssl 2020-02-04 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-2019-19963 1 Wolfssl 1 Wolfssl 2020-01-02 4.3 MEDIUM 5.3 MEDIUM
An issue was discovered in wolfSSL before 4.3.0 in a non-default configuration where DSA is enabled. DSA signing uses the BEEA algorithm during modular inversion of the nonce, leading to a side-channel attack against the nonce.
CVE-2019-19960 1 Wolfssl 1 Wolfssl 2020-01-02 4.3 MEDIUM 5.3 MEDIUM
In wolfSSL before 4.3.0, wc_ecc_mulmod_ex does not properly resist side-channel attacks.
CVE-2014-2904 1 Wolfssl 1 Wolfssl 2019-12-04 5.0 MEDIUM 7.5 HIGH
wolfssl before 3.2.0 has a server certificate that is not properly authorized for server authentication.
CVE-2014-2901 1 Wolfssl 1 Wolfssl 2019-12-04 5.0 MEDIUM 7.5 HIGH
wolfssl before 3.2.0 does not properly issue certificates for a server's hostname.
CVE-2014-2902 1 Wolfssl 1 Wolfssl 2019-12-04 5.0 MEDIUM 7.5 HIGH
wolfssl before 3.2.0 does not properly authorize CA certificate for signing other certificates.
CVE-2019-18840 1 Wolfssl 1 Wolfssl 2019-11-12 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-2019-13628 1 Wolfssl 1 Wolfssl 2019-10-10 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-2018-16870 1 Wolfssl 1 Wolfssl 2019-10-09 4.3 MEDIUM 5.9 MEDIUM
It was found that wolfssl before 3.15.7 is vulnerable to a new variant of the Bleichenbacher attack to perform downgrade attacks against TLS. This may lead to leakage of sensible data.
CVE-2017-13099 3 Arubanetworks, Siemens, Wolfssl 4 Instant, Scalance W1750d, Scalance W1750d Firmware and 1 more 2019-10-09 4.3 MEDIUM 5.9 MEDIUM
wolfSSL prior to version 3.12.2 provides a weak Bleichenbacher oracle when any TLS cipher suite using RSA key exchange is negotiated. An attacker can recover the private key from a vulnerable wolfSSL application. This vulnerability is referred to as "ROBOT."