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Category:   Application (VPN)  >   GnuTLS Vendors:   gnutls.org
GnuTLS ECC Certificate Processing Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID:  1031207
SecurityTracker URL:  http://securitytracker.com/id/1031207
CVE Reference:   CVE-2014-8564   (Links to External Site)
Date:  Nov 12 2014
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to versions 3.1.28, 3.2.20, 3.3.10
Description:   A vulnerability was reported in GnuTLS. A remote user can cause denial of service conditions.

A remote user can send a specially crafted Elliptic Curve Cryptography (ECC) certificate or certificate signing request (CSR) that, when processed by the target application, will trigger a heap corruption error and cause the application to crash.

The error occurs when printing information (e.g., key ID) about the public key.

Sean Burford reported this vulnerability.

Impact:   A remote user can cause the target application to crash.
Solution:   The vendor has issued a fix (3.1.28, 3.2.20, 3.3.10).

The vendor's advisory is available at:

http://www.gnutls.org/security.html#GNUTLS-SA-2014-5

Vendor URL:  www.gnutls.org/security.html#GNUTLS-SA-2014-5 (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Nov 12 2014 (Ubuntu Issues Fix) GnuTLS ECC Certificate Processing Flaw Lets Remote Users Deny Service
Ubuntu has issued a fix for Ubuntu 14.10.
Nov 12 2014 (Red Hat Issues Fix) GnuTLS ECC Certificate Processing Flaw Lets Remote Users Deny Service
Red Hat has issued a fix for Red Hat Enterprise Linux 7.



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