CVE-2017-3730 Bad (EC)DHE parameters cause a client crash

2017-01-2600:00:00

openssl

www.cve.org

7.3 High

AI Score

Confidence

High

0.954 High

EPSS

Percentile

99.4%

JSON

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

CNA Affected

[
  {
    "product": "OpenSSL",
    "vendor": "OpenSSL",
    "versions": [
      {
        "status": "affected",
        "version": "openssl-1.1.0"
      },
      {
        "status": "affected",
        "version": "openssl-1.1.0a"
      },
      {
        "status": "affected",
        "version": "openssl-1.1.0b"
      },
      {
        "status": "affected",
        "version": "openssl-1.1.0c"
      }
    ]
  }
]