Ubuntu.comUB:CVE-2007-4103CVE-2007-4103
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
96.7%
The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23,
1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when
configured to allow unauthenticated calls, allows remote attackers to cause
a denial of service (resource exhaustion) via a flood of calls that do not
complete a 3-way handshake, which causes an ast_channel to be allocated but
not released.
Notes
| Author | Note |
|---|---|
| fujitsu | Only 1.2.20, 1.2.21, 1.2.21.1 and 1.2.22 are affected. |
Related
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
96.7%