CVE-2016-7053
Published: 4 May 2017
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.
Notes
| Author | Note |
|---|---|
| mdeslaur | 1.1.0 only |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
openssl Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
| trusty |
Not vulnerable
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
|
|
| yakkety |
Not vulnerable
|
|
|
openssl098 Launchpad, Ubuntu, Debian |
precise |
Not vulnerable
|
| trusty |
Does not exist
(trusty was not-affected)
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
|
openssl1.0 Launchpad, Ubuntu, Debian |
precise |
Does not exist
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |