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Category:   Application (Generic)  >   cURL Vendors:   curl.haxx.se
(Ubuntu Issues Fix) cURL/libcurl TLS Session Resumption Client Certificate Bug Lets Remote Users Bypass Security Restrictions on the Target System
SecurityTracker Alert ID:  1038342
SecurityTracker URL:  http://securitytracker.com/id/1038342
CVE Reference:   CVE-2017-7468   (Links to External Site)
Date:  Apr 21 2017
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 7.52.0 - 7.53.1
Description:   A vulnerability was reported in cURL. A remote user can bypass security controls on the target system.

The library may resume using a TLS session when the client certificate has changed. As a result, an application may be able to send data using incorrect authentication data.

The command line tool is also affected.

The vendor was notified on March 21, 2017.

lijian996 at users.noreply.github.com reported this vulnerability.

Impact:   An application may be able to send data using incorrect authentication data.
Solution:   Ubuntu has issued a fix for CVE-2017-7468.

The Ubuntu advisory is available at:

http://www.ubuntu.com/usn/usn-3262-1

Vendor URL:  www.ubuntu.com/usn/usn-3262-1 (Links to External Site)
Cause:   Authentication error, State error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  17.04

Message History:   This archive entry is a follow-up to the message listed below.
Apr 21 2017 cURL/libcurl TLS Session Resumption Client Certificate Bug Lets Remote Users Bypass Security Restrictions on the Target System



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