38196 : Asterisk IAX2 Channel Driver (chan_iax2) RTP Frame Handling Remote Overflow
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
4	191	over 4 years ago	over 3 years ago	1 times	90%

Timeline

Disclosure Date	Vendor Solution Date
2007-07-17	2007-07-17

Keywords

AST-2007-014

Description

A remote overflow exists in multiple asterisk products. The iax2 channel driver fails to verify boundaries on incoming RTP frames with a voice or video payload larger than 4kB resulting in a stack-based overflow. With a specially crafted request, an attacker can cause a denial of service and possible arbitrary code execution resulting in a loss of integrity and/or availability.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service, Input Manipulation
Impact: Loss of Integrity, Loss of Availability
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified

Solution

Upgrade to Asterisk version 1.4.8 or 1.2.22, Asterisk Business Edition version B.2.2.1, AsteriskNOW beta7, Asterisk Appliance Developer Kit version 0.5.0, Asterisk S800i appliance 1.0.2 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Asterisk	Asterisk	1.0.x
		1.4.0-beta1
		1.4.0-beta2
		1.4.0-beta3
		1.4.0-beta4
		1.4.0
		1.4.1
		1.4.2
		1.4.3
		1.4.4
		1.4.5
		1.4.6
		1.4.7
		1.4.7.1
		1.2.0
		1.2.1
		1.2.2
		1.2.3
		1.2.4
		1.2.5
		1.2.6
		1.2.7
		1.2.7.1
		1.2.8
		1.2.9
		1.2.9.1
		1.2.10
		1.2.11
		1.2.12
		1.2.12.1
		1.2.13
		1.2.14
		1.2.15
		1.2.16
		1.2.17
		1.2.18
		1.2.19
		1.2.20
		1.2.21
		1.2.21.1
		1.4.8 (not affected)
		1.2.22 (not affected)
	Asterisk Appliance Developer Kit	0.5.0 (not affected)
		0.4.0
		0.3.2a
		0.2.0
	AsteriskNOW	beta7 (not affected)
		beta5
		beta6
	Asterisk Business Edition	A.x.x
		B.2.2.1 (not affected)
		B.1.x
	s800i	1.0.2 (not affected)
	s800i	1.0.1

References

Security Tracker: 1018407
CVE ID: 2007-3762 (see also: NVD)
Secunia Advisory ID: 22588 26099 26602 29051
Bugtraq ID: 24949
ISS X-Force ID: 35466 35480
Related OSVDB ID: 38193 38194 38195
VUPEN Advisory: ADV-2007-2563
Mail List Post: http://archives.neohapsis.com/archives/bugtraq/2007-07/0173.html
Vendor Specific News/Changelog Entry: http://ftp.digium.com/pub/asa/ASA-2007-014.pdf
Other Advisory URL: http://lists.debian.org/debian-security-announce/debian-security-announce-2007/msg00120.html
http://lists.opensuse.org/opensuse-security-announce/2007-08/msg00003.html
http://www.debian.org/security/2007/dsa-1358
http://www.gentoo.org/security/en/glsa/glsa-200802-11.xml
http://www.novell.com/linux/security/advisories/2007_15_sr.html

Tools & Filters

	25938 27158 31294

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2007-07-19 | Disagree?

Blogs

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