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redhatcveRedhat.comRH:CVE-2021-43826
HistoryFeb 23, 2022 - 2:35 a.m.

CVE-2021-43826

2022-02-2302:35:39
redhat.com
access.redhat.com
72
envoy
use-after-free
denial of service
tcp over http

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

7.5

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

0.001

Percentile

40.1%

JSON

A flaw was found in envoy. If a downstream source disconnects during upstream connection establishment when tunneling TCP over HTTP, a use-after-free can occur, resulting in a denial of service.

Related

osv 3
cve 1
cnvd 1
prion 1
nvd 1
cvelist 1
veracode 1
github 1
redhat 2
nessus 2
osv
osv
BIT-envoy-2021-43826
2024-03-06 10:56:37
CVE-2021-43826
2022-02-22 23:15:00
Multiple security issues in Pomerium's embedded envoy
2022-03-01 22:04:17
cve
cve
CVE-2021-43826
2022-02-22 23:15:10
cnvd
cnvd
Envoy Resource Management Error Vulnerability (CNVD-2022-15542)
2022-02-24 00:00:00
prion
prion
Code injection
2022-02-22 23:15:00
nvd
nvd
CVE-2021-43826
2022-02-22 23:15:10
cvelist
cvelist
CVE-2021-43826 Crash when tunneling TCP over HTTP in Envoy
2022-02-22 22:45:22
veracode
veracode
Denial Of Service (DoS)
2022-06-02 20:45:36
github
github
Multiple security issues in Pomerium's embedded envoy
2022-03-01 22:04:17
redhat
redhat
(RHSA-2022:1275) Important: Red Hat OpenShift Service Mesh 2.1.2 security update
2022-04-07 17:30:35
(RHSA-2022:1276) Important: Red Hat OpenShift Service Mesh 2.0.9 security update
2022-04-07 17:26:44
nessus
nessus
RHEL 8 : Red Hat OpenShift Service Mesh 2.1.2 (RHSA-2022:1275)
2022-04-08 00:00:00
RHEL 8 : Red Hat OpenShift Service Mesh 2.0.9 (RHSA-2022:1276)
2022-04-08 00:00:00

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

7.5

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

0.001

Percentile

40.1%

JSON
Related for RH:CVE-2021-43826
osv3cve1cnvd1prion1nvd1cvelist1veracode1github1redhat2nessus2