Asterisk Malformed MIME Body Remote Denial of Service Vulnerability

BID:25438

Info

Asterisk Malformed MIME Body Remote Denial of Service Vulnerability

Bugtraq ID: 25438
Class: Failure to Handle Exceptional Conditions
CVE: CVE-2007-4521
Remote: Yes
Local: No
Published: Aug 24 2007 12:00AM
Updated: Aug 31 2007 10:42PM
Credit: Kevin Stewart is credited with the discovery of this vulnerability.
Vulnerable: Asterisk Asterisk 1.4.11
Asterisk Asterisk 1.4.10
Asterisk Asterisk 1.4.9
Asterisk Asterisk 1.4.8
Asterisk Asterisk 1.4.7
Asterisk Asterisk 1.4.6
Asterisk Asterisk 1.4.5
Not Vulnerable: Asterisk Asterisk 1.4.12

Discussion

Asterisk Malformed MIME Body Remote Denial of Service Vulnerability

Asterisk is prone to a remote denial-of-service vulnerability because the application fails to properly handle specially crafted emails.

Exploiting this issue allows remote attackers to cause the application to crash, effectively denying service to legitimate users.

This issue affects Asterisk 1.4.5 to 1.4.11.

Exploit / POC

Asterisk Malformed MIME Body Remote Denial of Service Vulnerability

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

Solution / Fix

Asterisk Malformed MIME Body Remote Denial of Service Vulnerability

Solution:
The vendor released a patch to address this issue. The vendor states that this issue will also be addressed in Asterisk 1.4.12 when it becomes available. Please see the references for more information.


Asterisk Asterisk 1.4.10

Asterisk Asterisk 1.4.11

Asterisk Asterisk 1.4.5

Asterisk Asterisk 1.4.6

Asterisk Asterisk 1.4.7

Asterisk Asterisk 1.4.8

Asterisk Asterisk 1.4.9

References

Asterisk Malformed MIME Body Remote Denial of Service Vulnerability

References:
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