|
ENet Library Two Denial of Service Vulnerabilities
|
|
Secunia Advisory:
|
SA19208
|
|
|
Release Date:
|
2006-03-13
|
|
Last Update:
|
2008-01-02
|
|
Popularity:
|
5,352 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
DoS
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | ENet Library
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
| CVE reference: | CVE-2006-1194
CVE-2006-1195
|
|
Description:
Luigi Auriemma has reported two vulnerabilities in ENet Library, which potentially can be exploited by malicious people to cause a DoS (Denial of Service).
1) A signedness error exists in the "enet_protocol_handle_incoming_commands()" function when validating a pointer to ensure that it does not access memory beyond the received packet. This can be exploited to bypass the check and cause out-of-bounds memory access via an overly large value in the "commandLength" field of the packet.
2) An error within the handling of fragmented packet reassembly can be exploited to cause the library to terminate the application when it fails to allocate memory to rebuilt all the fragments. This can be exploited via an overly large total data size value sent by the attacker.
The vulnerabilities have been reported in versions released July 2005 and prior. Other versions may also be affected.
Note: All applications that use the library may be affected.
Solution:
Reportedly fixed in version 1.1.
http://enet.bespin.org/download/enet-1.1.tar.gz
Filter potentially malicious UDP packets using a firewall.
Provided and/or discovered by:
Luigi Auriemma
Changelog:
2006-03-16: Added CVE references.
2008-01-02: Updated "Solution" section.
Original Advisory:
http://aluigi.altervista.org/adv/enetx-adv.txt
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
