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f5F5F5:K43470422
HistoryMar 10, 2021 - 12:00 a.m.

K43470422 : BIG-IP MPTCP vulnerability CVE-2021-23003

2021-03-1000:00:00
my.f5.com
16

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

6.1 Medium

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

43.0%

Security Advisory Description

The Traffic Management Microkernel (TMM) process may produce a core file when undisclosed MPTCP traffic passes through a standard virtual server. (CVE-2021-23003)

Impact

A remote attacker may be able to cause the BIG-IP system to produce a core file, disrupting the flow of traffic and causing a failover to a standby system, if configured. Additionally, in rare circumstances, running the tmsh show conn command may trigger this vulnerability.

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

6.1 Medium

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

43.0%

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