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Category:   Application (VPN)  >   GnuTLS Vendors:   gnutls.org
GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
SecurityTracker Alert ID:  1037576
SecurityTracker URL:  http://securitytracker.com/id/1037576
CVE Reference:   CVE-2017-5334, CVE-2017-5335, CVE-2017-5336, CVE-2017-5337   (Links to External Site)
Date:  Jan 11 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:   The vendor has issued a fix (3.3.26, 3.5.8).

The vendor advisories are available at:

https://gnutls.org/security.html#GNUTLS-SA-2017-1
https://gnutls.org/security.html#GNUTLS-SA-2017-2

Vendor URL:  gnutls.org/security.html#GNUTLS-SA-2017-1 (Links to External Site)
Cause:   Access control error, Boundary error
Underlying OS:  Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Feb 1 2017 (Ubuntu Issues Fix) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS, 14.04 LTS, 16.04 LTS, and 16.10.
Mar 21 2017 (Red Hat Issues Fix) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 6.
Mar 21 2017 (Ubuntu Issues Fix) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
Ubuntu has issued a fix for Ubuntu Linux 12.04 LTS and 14.04 LTS.
Mar 28 2017 (Oracle Issues Fix for Oracle Linux) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
Oracle has issued a fix for Oracle Linux 6.
Aug 1 2017 (Red Hat Issues Fix) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
Red Hat has issued a fix for Red Hat Enterprise Linux 7.
Jan 12 2018 (IBM Issues Fix for IBM Security Access Manager Appliance) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
IBM has issued a fix for IBM Security Access Manager Appliance.
May 10 2018 (IBM Issues Fix for IBM Security Guardium) GnuTLS Lets Remote Users Execute Arbitrary Code on the Target System
IBM has issued a fix for IBM Security Guardium.



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