GnuTLS CVE-2017-6891 Stack Buffer Overflow Vulnerability

Bugtraq ID:	98641
Class:	Boundary Condition Error
CVE:	CVE-2017-6891
Remote:	Yes
Local:	No
Published:	May 22 2017 12:00AM
Updated:	Jun 05 2017 07:02PM
Credit:	Jakub Jirasek, Secunia Research at Flexera Software.
Vulnerable:	Ubuntu Ubuntu Linux 17.04 Ubuntu Ubuntu Linux 16.10 Ubuntu Ubuntu Linux 16.04 LTS Ubuntu Ubuntu Linux 14.04 LTS GNU GnuTLS 4.10 Debian Linux 6.0 sparc Debian Linux 6.0 s/390 Debian Linux 6.0 powerpc Debian Linux 6.0 mips Debian Linux 6.0 ia-64 Debian Linux 6.0 ia-32 Debian Linux 6.0 ia-30 Debian Linux 6.0 arm Debian Linux 6.0 amd64 Debian Linux 6
Not Vulnerable:

GnuTLS CVE-2017-6891 Stack Buffer Overflow Vulnerability

GnuTLS is prone to a stack-based buffer-overflow vulnerability.

Attackers can exploit this issue to execute arbitrary code in the context of the affected application. Failed exploit attempts will likely cause a denial-of-service condition.

GnuTLS version 4.10 is vulnerable; other versions may also be affected.

GnuTLS CVE-2017-6891 Stack Buffer Overflow Vulnerability

Currently, we are not aware of any working exploits. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].

GnuTLS CVE-2017-6891 Stack Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

GnuTLS CVE-2017-6891 Stack Buffer Overflow Vulnerability

References:

• GnuTLS Home Page (GnuTLS )
  
• asn1_find_node: added safety check on asn1_find_node() (savannah)