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>> Asterisk IMAP Storage Data Handling Two Buffer Overflow Vulnerabilities
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Title : Asterisk IMAP Storage Data Handling Two Buffer Overflow Vulnerabilities
VUPEN ID : VUPEN/ADV-2007-3454
CVE ID : CVE-2007-5358
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-10-10
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Two vulnerabilities have been identified in Asterisk, which could be exploited by remote or local attackers to execute arbitrary code.
The first issue is caused by a buffer overflow error in the IMAP service when playing or forwarding a voice message while the combined content of the "astspooldir" option (set in "asterisk.conf"), the voicemail context, and the voicemail mailbox is overly long, which could be exploited by local attackers to gain elevated privileges.
The second vulnerability is caused by a buffer overflow error in the IMAP service when listening to a voicemail message (via a telephone) with an overly long (more than a 1024 characters) "Content-type" or "Content-description" header, which could be exploited by remote attackers to compromise a vulnerable system.
Affected Products
Asterisk versions prior to 1.4.13
Solution
Upgrade to Asterisk version 1.4.13 :
http://downloads.digium.com/pub/asterisk/releases/asterisk-1.4.13.tar.gz
References
http://www.vupen.com/english/advisories/2007/3454
http://downloads.digium.com/pub/security/AST-2007-022.html
Credits
Vulnerabilities reported by the vendor.
ChangeLog
2007-10-10 : Initial release
Vulnerability Management
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