CVE-2016-5420
Published: 3 August 2016
curl and libcurl before 7.50.1 do not check the client certificate when choosing the TLS connection to reuse, which might allow remote attackers to hijack the authentication of the connection by leveraging a previously created connection with a different client certificate.
Notes
Author | Note |
---|---|
seth-arnold | when built against NSS another patch is needed, see http://www.openwall.com/lists/oss-security/2016/09/05/1 for information http://www.openwall.com/lists/oss-security/2016/09/05/7 |
Priority
Status
Package | Release | Status |
---|---|---|
curl Launchpad, Ubuntu, Debian |
precise |
Released
(7.22.0-3ubuntu4.16)
|
trusty |
Released
(7.35.0-1ubuntu2.8)
|
|
upstream |
Released
(7.50.1-1)
|
|
xenial |
Released
(7.47.0-1ubuntu2.1)
|
|
yakkety |
Not vulnerable
(7.50.1-1ubuntu1)
|
|
zesty |
Not vulnerable
(7.50.1-1ubuntu1)
|
|
Patches: upstream: https://curl.haxx.se/CVE-2016-5420.patch |
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 | High |
Availability impact | None |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |