CVSS: 7.5EPSS: 0%CPEs: 28EXPL: 1CVE-2021-4044 – Invalid handling of X509_verify_cert() internal errors in libssl
https://notcve.org/view.php?id=CVE-2021-4044
14 Dec 2021 — Internally libssl in OpenSSL calls X509_verify_cert() on the client side to verify a certificate supplied by a server. That function may return a negative return value to indicate an internal error (for example out of memory). Such a negative return value is mishandled by OpenSSL and will cause an IO function (such as SSL_connect() or SSL_do_handshake()) to not indicate success and a subsequent call to SSL_get_error() to return the value SSL_ERROR_WANT_RETRY_VERIFY. This return value is only supposed to be ... • https://github.com/phirojshah/CVE-2021-4044 • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •
CVSS: 9.1EPSS: 0%CPEs: 7EXPL: 0CVE-2020-7043
https://notcve.org/view.php?id=CVE-2020-7043
27 Feb 2020 — An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL before 1.0.2. tunnel.c mishandles certificate validation because hostname comparisons do not consider '\0' characters, as demonstrated by a good.example.com\x00evil.example.com attack. Se detectó un problema en openfortivpn versión 1.11.0, cuando se usaba con OpenSSL versiones anteriores a 1.0.2. en el archivo tunnel.c maneja inapropiadamente la comprobación del certificado porque las comparaciones hostname no consideran los caracteres "\... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html • CWE-295: Improper Certificate Validation •
CVSS: 5.3EPSS: 0%CPEs: 7EXPL: 0CVE-2020-7042
https://notcve.org/view.php?id=CVE-2020-7042
27 Feb 2020 — An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because the hostname check operates on uninitialized memory. The outcome is that a valid certificate is never accepted (only a malformed certificate may be accepted). Se detectó un problema en openfortivpn versión 1.11.0, cuando se usaba con OpenSSL versiones 1.0.2 o posteriores, en el archivo tunnel.c, maneja inapropiadamente la comprobación del certificado porque la verificación... • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html • CWE-295: Improper Certificate Validation CWE-908: Use of Uninitialized Resource •
CVSS: 5.3EPSS: 0%CPEs: 7EXPL: 0CVE-2020-7041
https://notcve.org/view.php?id=CVE-2020-7041
27 Feb 2020 — An issue was discovered in openfortivpn 1.11.0 when used with OpenSSL 1.0.2 or later. tunnel.c mishandles certificate validation because an X509_check_host negative error code is interpreted as a successful return value. Se detectó un problema en openfortivpn versión 1.11.0, cuando se usaba con OpenSSL versiones 1.0.2 o posteriores, el archivo tunnel.c maneja inapropiadamente la comprobación del certificado porque un código de error negativo de X509_check_host se interpreta como un valor de retorno exitoso. • http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00009.html • CWE-295: Improper Certificate Validation •
CVSS: 9.8EPSS: 0%CPEs: 13EXPL: 0CVE-2018-16395 – ruby: OpenSSL::X509:: Name equality check does not work correctly
https://notcve.org/view.php?id=CVE-2018-16395
03 Nov 2018 — An issue was discovered in the OpenSSL library in Ruby before 2.3.8, 2.4.x before 2.4.5, 2.5.x before 2.5.2, and 2.6.x before 2.6.0-preview3. When two OpenSSL::X509::Name objects are compared using ==, depending on the ordering, non-equal objects may return true. When the first argument is one character longer than the second, or the second argument contains a character that is one less than a character in the same position of the first argument, the result of == will be true. This could be leveraged to cre... • http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html • CWE-295: Improper Certificate Validation •
CVSS: 7.5EPSS: 0%CPEs: 3EXPL: 1CVE-2016-7798 – Ubuntu Security Notice USN-3365-1
https://notcve.org/view.php?id=CVE-2016-7798
30 Jan 2017 — The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism. La openssl gem para Ruby utiliza el mismo vector de inicialización (IV) en el modo GCM (aes - * - gcm) cuando el IV se establece en versiones anteriores a la clave, lo que facilita que los atacantes dependiendo del contexto eludan el mecanismo de protección del cifrado. It was discover... • http://www.openwall.com/lists/oss-security/2016/09/19/9 • CWE-326: Inadequate Encryption Strength •
CVSS: 5.5EPSS: 0%CPEs: 7EXPL: 0CVE-2016-7056 – openssl: ECDSA P-256 timing attack key recovery
https://notcve.org/view.php?id=CVE-2016-7056
30 Jan 2017 — A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys. Se ha encontrado un error de ataque de sincronización en OpenSSL, en versiones 1.0.1u y anteriores, que podría permitir que un usuario malicioso con acceso local recupere claves privadas ECDSA P-256 A timing attack flaw was found in OpenSSL that could allow a malicious user with local access to recover ECDSA P-256 private keys. Red Hat JBoss Core Services is a ... • http://rhn.redhat.com/errata/RHSA-2017-1415.html • CWE-320: Key Management Errors CWE-385: Covert Timing Channel •
CVSS: 7.5EPSS: 0%CPEs: 1EXPL: 0CVE-2000-1254
https://notcve.org/view.php?id=CVE-2000-1254
05 May 2016 — crypto/rsa/rsa_gen.c in OpenSSL before 0.9.6 mishandles C bitwise-shift operations that exceed the size of an expression, which makes it easier for remote attackers to defeat cryptographic protection mechanisms by leveraging improper RSA key generation on 64-bit HP-UX platforms. crypto/rsa/rsa_gen.c en OpenSSL en versiones anteriores a 0.9.6 maneja incorrectamente operaciones de desplazamiento a nivel de bit en C que exceden el tamaño de una expresión, lo que facilita a atacantes remotos vencer mecanismos d... • http://marc.info/?l=openssl-users&m=95961024500509 • CWE-310: Cryptographic Issues •
CVSS: 8.2EPSS: 60%CPEs: 12EXPL: 0CVE-2016-2176 – OpenSSL Security Advisory 20160503
https://notcve.org/view.php?id=CVE-2016-2176
03 May 2016 — The X509_NAME_oneline function in crypto/x509/x509_obj.c in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to obtain sensitive information from process stack memory or cause a denial of service (buffer over-read) via crafted EBCDIC ASN.1 data. La función X509_NAME_oneline en crypto/x509/x509_obj.c en OpenSSL en versiones anteriores a 1.0.1t y 1.0.2 en versiones anteriores a 1.0.2h permite a atacantes remotos obtener información sensible de la pila de memoria de proceso o provocar una ... • http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 7.5EPSS: 31%CPEs: 23EXPL: 0CVE-2016-2106 – openssl: EVP_EncryptUpdate overflow
https://notcve.org/view.php?id=CVE-2016-2106
03 May 2016 — Integer overflow in the EVP_EncryptUpdate function in crypto/evp/evp_enc.c in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (heap memory corruption) via a large amount of data. Desbordamiento de entero en la función EVP_EncryptUpdate en crypto/evp/evp_enc.c en OpenSSL en versiones anteriores a 1.0.1t y 1.0.2 en versiones anteriores a 1.0.2h permite a atacantes remotos provocar una denegación de servicio (corrupción de memoria dinámica) a través de una gra... • http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 • CWE-122: Heap-based Buffer Overflow CWE-189: Numeric Errors •