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redhatcveRedhat.comRH:CVE-2023-35942
HistoryJul 26, 2023 - 4:47 p.m.

CVE-2023-35942

2023-07-2616:47:45
redhat.com
access.redhat.com
95
envoy
grpc
access log
use-after-free
flaw
cve-2023-35942

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

20.3%

A flaw was found in Envoy, where gRPC access loggers using the listener’s global scope can cause a use-after-free crash when the listener is drained. This issue can be triggered by a listener discovery service (LDS) update with the same gRPC access log configuration.

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

0.001 Low

EPSS

Percentile

20.3%