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Category:   Application (VPN)  >   GnuTLS Vendors:   gnutls.org
(Ubuntu Issues Fix) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1037760
SecurityTracker URL:  http://securitytracker.com/id/1037760
CVE Reference:   CVE-2017-5334, CVE-2017-5335, CVE-2017-5336, CVE-2017-5337   (Links to External Site)
Date:  Feb 1 2017
Impact:   Execution of arbitrary code via network, User access via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   Several vulnerabilities were reported in GnuTLS. A remote user can execute arbitrary code on the target system.

A remote user can send a specially crafted X.509 containing a Proxy Certificate Information extension to trigger a double-free memory error in gnutls_x509_ext_import_proxy() and execute arbitrary code on the target system [CVE-2017-5334].

A remote user can send a specially crafted OpenPGP certificate to trigger a heap or stack overflow and execute arbitrary code on the target system [CVE-2017-5335, CVE-2017-5336, CVE-2017-5337].

Impact:   A remote user can execute arbitrary code on the target system.
Solution:   Ubuntu has issued a fix.

The Ubuntu advisory is available at:

http://www.ubuntu.com/usn/usn-3183-1

Vendor URL:  www.ubuntu.com/usn/usn-3183-1 (Links to External Site)
Cause:   Access control error, Boundary error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  12.04 LTS, 14.04 LTS, 16.04 LTS, 16.10

Message History:   This archive entry is a follow-up to the message listed below.
Jan 11 2017 GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System



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