CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
EPSS
Percentile
93.4%
chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before
1.8.11.1 and 10.x before 10.3.1 and Asterisk Business Edition C.3.x before
C.3.7.4, when the trustrpid option is enabled, allows remote authenticated
users to cause a denial of service (daemon crash) by sending a SIP UPDATE
message that triggers a connected-line update attempt without an associated
channel.