LuaExpat SAX XML Parsing Denial of Service Vulnerability

Bugtraq ID:	48123
Class:	Input Validation Error
CVE:	CVE-2011-2188
Remote:	Yes
Local:	No
Published:	Jun 04 2011 12:00AM
Updated:	Apr 16 2015 05:50PM
Credit:	Enrico Tassi
Vulnerable:	Lua LuaExpat 1.1
Not Vulnerable:	Lua LuaExpat 1.2

LuaExpat SAX XML Parsing Denial of Service Vulnerability

LuaExpat is prone to a denial-of-service vulnerability because it fails to properly handle crafted XML data.

Exploiting this issue allows remote attackers to cause denial-of-service conditions in the context of an application using the vulnerable XML parsing library. Successfully exploiting this issue allows remote attackers to crash affected applications.

LuaExpat 1.1.0 is vulnerable; other versions may also be affected.

LuaExpat SAX XML Parsing Denial of Service 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].

LuaExpat SAX XML Parsing Denial of Service Vulnerability

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

LuaExpat SAX XML Parsing Denial of Service Vulnerability

References:

• Bug 711027 - lua-expat: Prone to XML "billion laughs attack" (Jan Lieskovsky)
  
• LuaExpat Homepage (Lua)
  
• Debian Bug report logs - #629225 (Enrico Tassi )
  
• Overflow attacks (IBM)