Overview
- Description
- 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.
- Source
- openssl-security@openssl.org
- NVD status
- Modified
Risk scores
CVSS 3.0
- Type
- Primary
- Base score
- 7.5
- Impact score
- 3.6
- Exploitability score
- 3.9
- Vector string
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- HIGH
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
- nvd@nist.gov
- CWE-476
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:openssl:openssl:1.1.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "73104834-5810-48DD-9B97-549D223853F1"
},
{
"criteria": "cpe:2.3:a:openssl:openssl:1.1.0a:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C9D7A18A-116B-4F68-BEA3-A4E9DDDA55C6"
},
{
"criteria": "cpe:2.3:a:openssl:openssl:1.1.0b:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "CFC70262-0DCD-4B46-9C96-FD18D0207511"
}
],
"operator": "OR"
}
]
}
]