5.9 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
0.0005 Low
EPSS
Percentile
17.1%
Envoy is a cloud-native, open source edge and service proxy. There is a use-after-free in HttpConnectionManager
(HCM) with EnvoyQuicServerStream
that can crash Envoy. An attacker can exploit this vulnerability by sending a request without FIN
, then a RESET_STREAM
frame, and then after receiving the response, closing the connection.