Vulnerability in Asterisk
CVE-2007-3763
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 cause a denial of service (crash) via a crafted (1) LAGRQ or (2) LAGRP frame that contains information elements of IAX frames, which results in a NULL pointer dereference when Asterisk does not properly set an associated variable.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.266 (98.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.266 · newest: 0.266 · change: 0.000
Affected products
- Asterisk — versions 1.0, 1.0.6, 1.0.7
- Asterisk Appliance Developer Kit
- Asterisk Asterisknow — versions beta_5, beta_6
- Asterisk S800i Appliance — versions 1.0, 1.0.1
References
- ftp.digium.com/pub/asa/ASA-2007-015.pdf (Patch, Vendor Advisory)
- secunia.com/advisories/26099 (third-party-advisory)
- www.securityfocus.com/bid/24950 (vdb-entry)
- www.securitytracker.com/id (vdb-entry)
- security.gentoo.org/glsa/glsa-200802-11.xml (vendor-advisory)
- secunia.com/advisories/29051 (third-party-advisory)
- bugs.gentoo.org/show_bug.cgi
- www.vupen.com/english/advisories/2007/2563 (vdb-entry)
- www.debian.org/security/2007/dsa-1358 (vendor-advisory)
- www.novell.com/linux/security/advisories/2007_15_sr.html (vendor-advisory)