CVE-2016-7053 CMS Null dereference

2016-11-1000:00:00

openssl

www.cve.org

6.3 Medium

AI Score

Confidence

High

0.739 High

EPSS

Percentile

98.1%

JSON

In OpenSSL 1.1.0 before 1.1.0c, applications parsing invalid CMS structures can crash with a NULL pointer dereference. This is caused by a bug in the handling of the ASN.1 CHOICE type in OpenSSL 1.1.0 which can result in a NULL value being passed to the structure callback if an attempt is made to free certain invalid encodings. Only CHOICE structures using a callback which do not handle NULL value are affected.

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"
      }
    ]
  }
]