CVSS: 5.9EPSS: 0%CPEs: 38EXPL: 2CVE-2021-23841 – Null pointer deref in X509_issuer_and_serial_hash()
https://notcve.org/view.php?id=CVE-2021-23841
16 Feb 2021 — The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never di... • https://github.com/Trinadh465/external_boringssl_openssl_1.1.0g_CVE-2021-23841 • CWE-476: NULL Pointer Dereference •
CVSS: 7.5EPSS: 0%CPEs: 67EXPL: 1CVE-2021-23840 – Integer overflow in CipherUpdate
https://notcve.org/view.php?id=CVE-2021-23840
16 Feb 2021 — Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissable length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash. OpenSSL versions 1.1.1i and below are affected by this issue. Users of these versions should upgrad... • https://github.com/Trinadh465/openssl-1.1.1g_CVE-2021-23840 • CWE-190: Integer Overflow or Wraparound •
CVSS: 5.9EPSS: 0%CPEs: 75EXPL: 1CVE-2020-1971 – EDIPARTYNAME NULL pointer dereference
https://notcve.org/view.php?id=CVE-2020-1971
08 Dec 2020 — The X.509 GeneralName type is a generic type for representing different types of names. One of those name types is known as EDIPartyName. OpenSSL provides a function GENERAL_NAME_cmp which compares different instances of a GENERAL_NAME to see if they are equal or not. This function behaves incorrectly when both GENERAL_NAMEs contain an EDIPARTYNAME. A NULL pointer dereference and a crash may occur leading to a possible denial of service attack. • https://github.com/MBHudson/CVE-2020-1971 • CWE-476: NULL Pointer Dereference •
CVSS: 4.3EPSS: 0%CPEs: 40EXPL: 0CVE-2020-1968 – Raccoon attack
https://notcve.org/view.php?id=CVE-2020-1968
09 Sep 2020 — The Raccoon attack exploits a flaw in the TLS specification which can lead to an attacker being able to compute the pre-master secret in connections which have used a Diffie-Hellman (DH) based ciphersuite. In such a case this would result in the attacker being able to eavesdrop on all encrypted communications sent over that TLS connection. The attack can only be exploited if an implementation re-uses a DH secret across multiple TLS connections. Note that this issue only impacts DH ciphersuites and not ECDH ... • https://lists.debian.org/debian-lts-announce/2020/09/msg00016.html • CWE-203: Observable Discrepancy •
CVSS: 7.5EPSS: 60%CPEs: 38EXPL: 2CVE-2020-1967 – Segmentation fault in SSL_check_chain
https://notcve.org/view.php?id=CVE-2020-1967
21 Apr 2020 — Server or client applications that call the SSL_check_chain() function during or after a TLS 1.3 handshake may crash due to a NULL pointer dereference as a result of incorrect handling of the "signature_algorithms_cert" TLS extension. The crash occurs if an invalid or unrecognised signature algorithm is received from the peer. This could be exploited by a malicious peer in a Denial of Service attack. OpenSSL version 1.1.1d, 1.1.1e, and 1.1.1f are affected by this issue. This issue did not affect OpenSSL ver... • https://packetstorm.news/files/id/157527 • CWE-476: NULL Pointer Dereference •
CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 0CVE-2020-9432
https://notcve.org/view.php?id=CVE-2020-9432
27 Feb 2020 — openssl_x509_check_host in lua-openssl 0.7.7-1 mishandles X.509 certificate validation because it uses lua_pushboolean for certain non-boolean return values. openssl_x509_check_host en lua-openssl versión 0.7.7-1, maneja inapropiadamente la comprobación del certificado X.509 porque usa lua_pushboolean para determinados valores de retorno no booleanos. • https://github.com/zhaozg/lua-openssl/commit/a6dc186dd4b6b9e329a93cca3e7e3cfccfdf3cca • CWE-295: Improper Certificate Validation •
CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 0CVE-2020-9433
https://notcve.org/view.php?id=CVE-2020-9433
27 Feb 2020 — openssl_x509_check_email in lua-openssl 0.7.7-1 mishandles X.509 certificate validation because it uses lua_pushboolean for certain non-boolean return values. openssl_x509_check_email en lua-openssl versión 0.7.7-1, maneja inapropiadamente la comprobación del certificado X.509 porque usa lua_pushboolean para determinados valores de retorno no booleanos. • https://github.com/zhaozg/lua-openssl/commit/a6dc186dd4b6b9e329a93cca3e7e3cfccfdf3cca • CWE-295: Improper Certificate Validation •
CVSS: 9.1EPSS: 0%CPEs: 1EXPL: 0CVE-2020-9434
https://notcve.org/view.php?id=CVE-2020-9434
27 Feb 2020 — openssl_x509_check_ip_asc in lua-openssl 0.7.7-1 mishandles X.509 certificate validation because it uses lua_pushboolean for certain non-boolean return values. openssl_x509_check_ip_asc en lua-openssl versión 0.7.7-1, maneja inapropiadamente la comprobación del certificado X.509 porque usa lua_pushboolean para determinados valores de retorno no booleanos. • https://github.com/zhaozg/lua-openssl/commit/a6dc186dd4b6b9e329a93cca3e7e3cfccfdf3cca • CWE-295: Improper Certificate Validation •
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 •