CVE-2009-2651: Null Pointer Dereference
First published: Thu Jul 30 2009(Updated: )
main/rtp.c in Asterisk Open Source 1.6.1 before 1.6.1.2 allows remote attackers to cause a denial of service (crash) via an RTP text frame without a certain delimiter, which triggers a NULL pointer dereference and the subsequent calculation of an invalid pointer.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Asterisk | =1.6.1 |
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Reference Links
- http://secunia.com/advisories/36039
- http://downloads.asterisk.org/pub/security/AST-2009-004.html
- http://downloads.digium.com/pub/security/AST-2009-004-1.6.1.diff.txt
- http://www.securityfocus.com/bid/35837
- http://www.vupen.com/english/advisories/2009/2067
- http://www.securitytracker.com/id?1022608
- http://osvdb.org/56571
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52046
Frequently Asked Questions
What is the severity of CVE-2009-2651?
CVE-2009-2651 has a medium severity rating due to its ability to cause a denial of service.
How do I fix CVE-2009-2651?
To resolve CVE-2009-2651, upgrade Asterisk Open Source to version 1.6.1.2 or later.
What versions of Asterisk are affected by CVE-2009-2651?
CVE-2009-2651 affects Asterisk Open Source version 1.6.1 and prior.
What type of vulnerability is CVE-2009-2651?
CVE-2009-2651 is a denial of service vulnerability caused by a NULL pointer dereference.
Can CVE-2009-2651 be exploited remotely?
Yes, CVE-2009-2651 can be exploited remotely by sending a malformed RTP text frame.
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