1929 matches found
JLSEC-2026-707 Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a...
Two buffer overflow vulnerabilities existed in the wolfSSL CRL parser when parsing CRL numbers: a heap-based buffer overflow could occur when improperly storing the CRL number as a hexadecimal string, and a stack-based overflow for sufficiently sized CRL numbers. With appropriately crafted CRLs,...
JLSEC-2026-758 iPAddress name constraints bypass when `WOLFSSL_IP_ALT_NAME` is not defined
iPAddress name constraints bypass when WOLFSSLIPALTNAME is not defined. IP address name constraints are not enforced in that configuration, allowing a certificate to bypass an issuing CA's IP address constraints...
JLSEC-2026-691 A stack buffer overflow vulnerability exists in wolfSSL's PKCS7 SignedData encoding functionality
A stack buffer overflow vulnerability exists in wolfSSL's PKCS7 SignedData encoding functionality. In wcPKCS7BuildSignedAttributes, when adding custom signed attributes, the code passes an incorrect capacity value esd-signedAttribsCount to EncodeAttributes instead of the remaining available space...
JLSEC-2026-722 In wolfSSL, ARIA-GCM cipher suites used in TLS 1.2 and DTLS 1.2 reuse an identical 12-byte GCM nonce...
In wolfSSL, ARIA-GCM cipher suites used in TLS 1.2 and DTLS 1.2 reuse an identical 12-byte GCM nonce for every application-data record. Because wcAriaEncrypt is stateless and passes the caller-supplied IV verbatim to the MagicCrypto SDK with no internal counter, and because the explicit IV is...
JLSEC-2026-721 Dual-Algorithm CertificateVerify out-of-bounds read
Dual-Algorithm CertificateVerify out-of-bounds read. When processing a dual-algorithm CertificateVerify message, an out-of-bounds read can occur on crafted input. This can only occur when --enable-experimental and --enable-dual-alg-certs is used when building wolfSSL...
JLSEC-2026-753 A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer...
A heap buffer overflow could occur in the DTLS 1.3 ACK serialization path before the connecting peer is authenticated. The buffer overflow was due to an integer truncation when computing the length of the ACK record-number list, causing an undersized buffer to be allocated and then overrun. This...
JLSEC-2026-702 A heap-buffer-overflow vulnerability exists in wolfSSL's `wolfSSL_d2i_SSL_SESSION()` function
A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSLd2iSSLSESSION function. When deserializing session data with SESSIONCERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and...
JLSEC-2026-670
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 certificateverify message from the handshake, and never present a certificate...
JLSEC-2026-669
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 sigalgo field differs between the certificateverify message and the certificate message...
JLSEC-2026-689 In the OpenSSL compatibility layer implementation, the function `RAND_poll()` was not behaving as...
In the OpenSSL compatibility layer implementation, the function RANDpoll was not behaving as expected and leading to the potential for predictable values returned from RANDbytes after fork is called. This can lead to weak or predictable random numbers generated in applications that are both using...
JLSEC-2026-699 X.509 trust-chain bypass (path-depth exhaustion) in the OpenSSL compatibility certificate verifier...
X.509 trust-chain bypass path-depth exhaustion in the OpenSSL compatibility certificate verifier wolfSSLX509verifycert. This affects only builds with --enable-opensslextra whose application calls X509verifycert with caller-supplied untrusted intermediates; for those users it is critical, otherwis...
JLSEC-2026-719
A stack buffer overflow exists in wolfSSL's PKCS7 implementation in the wcPKCS7DecryptOri function in wolfcrypt/src/pkcs7.c. When processing a CMS EnvelopedData message containing an OtherRecipientInfo ORI recipient, the function copies an ASN.1-parsed OID into a fixed 32-byte stack buffer...
JLSEC-2026-703
An integer overflow vulnerability existed in the static function wolfssladdtochain, that caused heap corruption when certificate data was written out of bounds of an insufficiently sized certificate buffer. wolfssladdtochain is called by these API: wolfSSLCTXaddextrachaincert,...
JLSEC-2026-729 wolfSSL's `wc_PKCS7_DecodeAuthEnvelopedData()` does not properly sanitize the AES-GCM authentication...
wolfSSL's wcPKCS7DecodeAuthEnvelopedData does not properly sanitize the AES-GCM authentication tag length received and has no lower bounds check. A man-in-the-middle can therefore truncate the mac field from 16 bytes to 1 byte, reducing the tag check from 2⁻¹²⁸ to 2⁻⁸...
JLSEC-2026-710
In wolfSSL 5.8.4, constant-time masking logic in sp256getentry2569 is optimized into conditional branches bnez by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret...
JLSEC-2026-692 Integer underflow in wolfSSL packet sniffer <= 5.8.4 allows an attacker to cause a buffer overflow...
Integer underflow in wolfSSL packet sniffer = 5.8.4 allows an attacker to cause a buffer overflow in the AEAD decryption path by injecting a TLS record shorter than the explicit IV plus authentication tag into traffic inspected by sslDecodePacket. The underflow wraps a 16-bit length to a large...
JLSEC-2026-677 wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing...
wolfSSL SP Math All RSA implementation is vulnerable to the Marvin Attack, new variation of a timing Bleichenbacher style attack, when built with the following options to configure: --enable-all CFLAGS="-DWOLFSSLSTATICRSA" The define “WOLFSSLSTATICRSA” enables static RSA cipher suites, which is n...
JLSEC-2026-704 Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in...
Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required keyshare extension,...
JLSEC-2026-676 If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension)...
If a TLS 1.3 client gets neither a PSK pre shared key extension nor a KSE key share extension when connecting to a malicious server, a default predictable buffer gets used for the IKM Input Keying Material value when generating the session master secret. Using a potentially known IKM value when...
JLSEC-2026-711 Stack Buffer Overflow in `wc_HpkeLabeledExtract` via Oversized ECH Config
Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client...