CVE-2016-7053 CMS Null dereference
HighCVSS 7.5
EPSS 21.7%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/openssl(Debian:12) | < 1.1.0c-1 | 1.1.0c-1 |
| debian/openssl(Debian:13) | < 1.1.0c-1 | 1.1.0c-1 |
| debian/openssl(Debian:14) | < 1.1.0c-1 | 1.1.0c-1 |
| OpenSSL | = 1.1.0 | No fix listed |
| OpenSSL | = 1.1.0a | No fix listed |
| OpenSSL | = 1.1.0b | No fix listed |
| OpenSSL | = openssl-1.1.0 | No fix listed |
| OpenSSL | = openssl-1.1.0a | No fix listed |
| OpenSSL | = openssl-1.1.0b | No fix listed |
References
- Debian Security Tracker CVE-2016-7053 vendor-advisory
- 94244 third-party-advisory vdb-entry
- 1037261 vdb-entry
- h20566.www2.hpe.com
- www.openssl.org vendor-advisory