|Date: (C)2011-07-06 (M)2017-08-29|
|CVSS Score: 5.0||Access Vector: NETWORK|
|Exploitability Subscore: 10.0||Access Complexity: LOW|
|Impact Subscore: 2.9||Authentication: NONE|
| ||Confidentiality: NONE|
| ||Integrity: NONE|
| ||Availability: PARTIAL|
chan_iax2.c in the IAX2 channel driver in Asterisk Open Source 1.4.x before 126.96.36.199, 1.6.2.x before 188.8.131.52.1, and 1.8.x before 184.108.40.206, and Asterisk Business Edition C.3 before C.3.7.3, accesses a memory address contained in an option control frame, which allows remote attackers to cause a denial of service (daemon crash) or possibly have unspecified other impact via a crafted frame.