cURL/libcurl TLS Connection Reuse Bug Lets Remote Users Bypass Security Restrictions on the Target System
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SecurityTracker Alert ID: 1036537 |
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SecurityTracker URL: http://securitytracker.com/id/1036537
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CVE Reference:
CVE-2016-5420
(Links to External Site)
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Date: Aug 4 2016
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Impact:
Disclosure of system information, Disclosure of user information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 7.1 - 7.50.0
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Description:
A vulnerability was reported in cURL/libcurl. A remote user can bypass security controls on the target system.
The library may reuse a TLS connection with the incorrect client certificate. As a result, an application may send requests to the wrong target realm using the incorrect authentication method.
The command line tool is also affected.
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Impact:
A remote user may be able to access data sent via a re-used TLS connection with the wrong or missing client certificate.
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Solution:
The vendor has issued a fix (7.50.1).
The vendor's advisory is available at:
https://curl.haxx.se/docs/adv_20160803B.html
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Vendor URL: curl.haxx.se/docs/adv_20160803B.html (Links to External Site)
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Cause:
Access control error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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