CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
AI Score
Confidence
Low
EPSS
Percentile
88.6%
The IAX2 channel driver (chan_iax2) in Asterisk 1.2 before revision 72630 and 1.4 before revision 65679, when configured to allow unauthenticated calls, sends “early audio” to an unverified source IP address of a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed NEW message.
Vendor | Product | Version | CPE |
---|---|---|---|
asterisk | asterisk_appliance_developer_kit | * | cpe:2.3:a:asterisk:asterisk_appliance_developer_kit:*:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | * | cpe:2.3:a:asterisk:asterisk_business_edition:*:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | a | cpe:2.3:a:asterisk:asterisk_business_edition:a:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | b.1.3.2 | cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.2:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | b.1.3.3 | cpe:2.3:a:asterisk:asterisk_business_edition:b.1.3.3:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | b.2.2.0 | cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.0:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | b.2.2.1 | cpe:2.3:a:asterisk:asterisk_business_edition:b.2.2.1:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | b.2.3.1 | cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.1:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | b.2.3.2 | cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.2:*:*:*:*:*:*:* |
asterisk | asterisk_business_edition | b.2.3.3 | cpe:2.3:a:asterisk:asterisk_business_edition:b.2.3.3:*:*:*:*:*:*:* |