libxml2 CVE-2017-9050 Incomplete Fix Local Heap Based Buffer Overflow Vulnerability

Bugtraq ID:	98568
Class:	Boundary Condition Error
CVE:	CVE-2017-9050
Remote:	No
Local:	Yes
Published:	May 18 2017 12:00AM
Updated:	Aug 23 2017 08:11AM
Credit:	Marcel Böhme
Vulnerable:	XMLSoft Libxml2 - 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 arm Debian Linux 6.0 amd64
Not Vulnerable:

libxml2 CVE-2017-9050 Incomplete Fix Local Heap Based Buffer Overflow Vulnerability

libxml2 is prone to a local heap-based buffer-overflow vulnerability.

Successful exploits may allow attackers to execute arbitrary code in the context of the application. Failed attacks will cause denial-of-service conditions.

Note: This issue is the result of an incomplete fix for issue CVE-2016-1839 described in 90691 (Apple Mac OS X/watchOS/iOS/tvOS Multiple Security Vulnerabilities).

libxml2 CVE-2017-9050 Incomplete Fix Local Heap Based Buffer Overflow Vulnerability

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

libxml2 CVE-2017-9050 Incomplete Fix Local Heap Based Buffer Overflow Vulnerability

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

libxml2 CVE-2017-9050 Incomplete Fix Local Heap Based Buffer Overflow Vulnerability

References:

• CVE-2017-9050 libxml2: Heap-based buffer over-read in function xmlDictAddString (Red Hat)
  
• Invalid writes and reads in libxml2 (Bohme)
  
• XMLSoft Homepage (XMLSoft)
  
• CVE-2017-9050 (Redhat)