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[email protected]CVE-2021-23034

HistorySep 14, 2021 - 6:15 p.m.

CVE-2021-23034

2021-09-1418:15:00

CWE-668

[email protected]

web.nvd.nist.gov

big-ip

version 16.x

version 15.1.x

dns profile

dns cache resolver

virtual server

tmm process

cve-2021-23034

security 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

8 High

AI Score

Confidence

High

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

38.0%

JSON

On BIG-IP version 16.x before 16.1.0 and 15.1.x before 15.1.3.1, when a DNS profile using a DNS cache resolver is configured on a virtual server, undisclosed requests can cause the Traffic Management Microkernel (TMM) process to terminate. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

CPENameOperatorVersion
f5:big-ip_global_traffic_managerf5 big-ip global traffic managerlt15.1.3.1
f5:big-ip_link_controllerf5 big-ip link controllerlt15.1.3.1
f5:big-ip_local_traffic_managerf5 big-ip local traffic managerlt15.1.3.1
f5:big-ip_policy_enforcement_managerf5 big-ip policy enforcement managerlt16.1.0
f5:big-ip_access_policy_managerf5 big-ip access policy managerlt15.1.3.1
f5:big-ip_advanced_firewall_managerf5 big-ip advanced firewall managerlt15.1.3.1
f5:big-ip_analyticsf5 big-ip analyticslt15.1.3.1
f5:big-ip_application_acceleration_managerf5 big-ip application acceleration managerlt15.1.3.1
f5:big-ip_application_security_managerf5 big-ip application security managerlt15.1.3.1
f5:big-ip_domain_name_systemf5 big-ip domain name systemlt15.1.3.1

CPE	Name	Operator	Version
f5:big-ip_global_traffic_manager	f5 big-ip global traffic manager	lt	15.1.3.1
f5:big-ip_link_controller	f5 big-ip link controller	lt	15.1.3.1
f5:big-ip_local_traffic_manager	f5 big-ip local traffic manager	lt	15.1.3.1
f5:big-ip_policy_enforcement_manager	f5 big-ip policy enforcement manager	lt	16.1.0
f5:big-ip_access_policy_manager	f5 big-ip access policy manager	lt	15.1.3.1
f5:big-ip_advanced_firewall_manager	f5 big-ip advanced firewall manager	lt	15.1.3.1
f5:big-ip_analytics	f5 big-ip analytics	lt	15.1.3.1
f5:big-ip_application_acceleration_manager	f5 big-ip application acceleration manager	lt	15.1.3.1
f5:big-ip_application_security_manager	f5 big-ip application security manager	lt	15.1.3.1
f5:big-ip_domain_name_system	f5 big-ip domain name system	lt	15.1.3.1

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References

support.f5.com/csp/article/K30523121

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

8 High

AI Score

Confidence

High

7.1 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

0.001 Low

EPSS

Percentile

38.0%

JSON

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