7.5 High
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
6.9 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.1%
Envoy is a cloud-native, open source edge and service proxy. A crash was observed in EnvoyQuicServerStream::OnInitialHeadersComplete()
with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after StopReading()
being called on the stream. As after StopReading()
, the HCM’s ActiveStream
might have already be destroyed and any up calls from QUICHE could potentially cause use after free.
7.5 High
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
6.9 Medium
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
17.1%