Asterisk IAX2 channel driver buffer overflow
| asterisk-iax2channeldriver-bo (35466) |  High Risk |
Description:
Asterisk is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by IAX2 channel driver. By sending a specially-crafted RTP frame with an overly large data payload, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
Note: In order to exploit this vulnerability, the system must be configured for connection between channels that use RTP and IAX channels.
Platforms Affected:
- Debian, Debian Linux 3.1
- Debian, Debian Linux 4.0
- Digium, Asterisk Appliance 1.0.x
- Digium, Asterisk Appliance Developer Kit 0.x.x
- Digium, Asterisk Business Edition A.x.x
- Digium, Asterisk Business Edition B.x.x
- Digium, Asterisk Open Source 1.0.0
- Digium, Asterisk Open Source 1.2.x
- Digium, Asterisk Open Source 1.4.x
- Digium, AsteriskNOW pre-release
- Gentoo, Linux
- SuSE, SuSE Linux 10.0
- SuSE, SuSE Linux 10.1
- SuSE, SuSE Linux
Remedy:
Refer to ASA-2007-014 for patch, upgrade or suggested workaround information. See References.
For SUSE Linux:
Refer to SUSE-SR:2007:015 for patch, upgrade, or suggested workaround information. See References.
For Debian/GNU Linux:
Refer to DSA-1358-1 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Gain Access
References:
- ASA-2007-014, Stack buffer overflow in IAX2 channel driver at http://ftp.digium.com/pub/asa/ASA-2007-014.pdf.
- Full-Disclosure Mailing List, Tue Jul 17 2007 - 17:55:51 CDT, ASA-2007-014: Stack buffer overflow in IAX2 channel driver at http://archives.neohapsis.com/archives/fulldisclosure/2007-07/0349.html.
- BID-24949: Asterisk IAX2 Channel Driver IAX2_Write Function Remote Stack Buffer Overflow Vulnerability
- CVE-2007-3762: Stack-based buffer overflow in the IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to execute arbitrary code by sending a long (1) voice or (2) video RTP frame.
- DSA-1358: asterisk -- several vulnerabilities
- GLSA-200802-11: Asterisk: Multiple vulnerabilities
- SA26099: Asterisk Multiple Vulnerabilities
- SECTRACK ID: 1018407: Asterisk STUN, Skinny Channel Driver, and IAX2 Channel Driver Bugs Let Remote Users Deny Service or Execute Arbitrary Code
- SUSE-SR:2007:015: SUSE Security Summary Report
- VUPEN/ADV-2007-2563: Asterisk Products Remote Buffer Overflow and Multiple Denial of Service Vulnerabilities
Reported:
Jul 17, 2007
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