Vulnerabilities > Openssl > Openssl > 1.1.1

DATE CVE VULNERABILITY TITLE RISK
2021-03-25 CVE-2021-3449 NULL Pointer Dereference vulnerability in multiple products
An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client.
5.9
2021-02-16 CVE-2021-23841 NULL Pointer Dereference vulnerability in multiple products
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.
5.9
2021-02-16 CVE-2021-23840 Integer Overflow or Wraparound vulnerability in multiple products
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.
7.5
2020-12-08 CVE-2020-1971 NULL Pointer Dereference vulnerability in multiple products
The X.509 GeneralName type is a generic type for representing different types of names.
5.9
2019-12-06 CVE-2019-1551 Integer Overflow or Wraparound vulnerability in multiple products
There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli.
5.3
2019-09-10 CVE-2019-1563 Information Exposure Through Discrepancy vulnerability in Openssl
In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack.
network
high complexity
openssl CWE-203
3.7
2019-09-10 CVE-2019-1549 Use of Insufficiently Random Values vulnerability in Openssl
OpenSSL 1.1.1 introduced a rewritten random number generator (RNG).
network
low complexity
openssl CWE-330
5.3
2019-09-10 CVE-2019-1547 Unspecified vulnerability in Openssl
Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths.
local
high complexity
openssl
4.7
2019-07-30 CVE-2019-1552 Improper Certificate Validation vulnerability in Openssl
OpenSSL has internal defaults for a directory tree where it can find a configuration file as well as certificates used for verification in TLS.
local
low complexity
openssl CWE-295
3.3
2019-03-06 CVE-2019-1543 Use of Insufficiently Random Values vulnerability in Openssl
ChaCha20-Poly1305 is an AEAD cipher, and requires a unique nonce input for every encryption operation.
network
high complexity
openssl CWE-330
7.4