PRIOn knowledge basePRION:CVE-2007-3763Null pointer dereference
6.6 Medium
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.955 High
EPSS
Percentile
99.3%
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.
References
bugs.gentoo.org/show_bug.cgi?id=185713
ftp.digium.com/pub/asa/ASA-2007-015.pdf
secunia.com/advisories/26099
secunia.com/advisories/29051
security.gentoo.org/glsa/glsa-200802-11.xml
www.debian.org/security/2007/dsa-1358
www.novell.com/linux/security/advisories/2007_15_sr.html
www.securityfocus.com/bid/24950
www.securitytracker.com/id?1018407
www.vupen.com/english/advisories/2007/2563
Related
6.6 Medium
AI Score
Confidence
Low
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.955 High
EPSS
Percentile
99.3%