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Category:   Application (VPN)  >   GnuTLS Vendors:   gnutls.org
GnuTLS Double Free Memory Error in DN Decoding Lets Remote Users Cause the Target Service to Crash
SecurityTracker Alert ID:  1033226
SecurityTracker URL:  http://securitytracker.com/id/1033226
CVE Reference:   CVE-2015-6251   (Links to External Site)
Updated:  Aug 27 2015
Original Entry Date:  Aug 11 2015
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to versions 3.3.17 and 3.4.4
Description:   A vulnerability was reported in GnuTLS. A remote user can cause the target service to crash.

A remote user can create a certificate with a specially crafted DistinguishedName (DN) entry that, when decoded by the target application, will trigger a double free memory error and cause the application to crash.

Kurt Roeckx reported this vulnerability.

Impact:   A remote user can cause the target application using GnuTLS to crash.
Solution:   The vendor has issued a fix (3.3.17, 3.4.4).

The vendor's advisory is available at:

http://www.gnutls.org/security.html#GNUTLS-SA-2015-3

Vendor URL:  www.gnutls.org/security.html#GNUTLS-SA-2015-3 (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any)

Message History:   None.


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