Advisory Published

CVE-2023-23549: DoS via long hostnames

First published: Wed Nov 15 2023(Updated: )

Improper Input Validation in Checkmk <2.2.0p15, <2.1.0p37, <=2.0.0p39 allows priviledged attackers to cause partial denial of service of the UI via too long hostnames.

Credit: security@checkmk.com

Affected SoftwareAffected VersionHow to fix
Tribe29 Checkmk=2.0.0
Tribe29 Checkmk=2.0.0-b1
Tribe29 Checkmk=2.0.0-b2
Tribe29 Checkmk=2.0.0-b3
Tribe29 Checkmk=2.0.0-b4
Tribe29 Checkmk=2.0.0-b5
Tribe29 Checkmk=2.0.0-b6
Tribe29 Checkmk=2.0.0-b7
Tribe29 Checkmk=2.0.0-b8
Tribe29 Checkmk=2.0.0-i1
Tribe29 Checkmk=2.0.0-p1
Tribe29 Checkmk=2.0.0-p10
Tribe29 Checkmk=2.0.0-p11
Tribe29 Checkmk=2.0.0-p12
Tribe29 Checkmk=2.0.0-p13
Tribe29 Checkmk=2.0.0-p14
Tribe29 Checkmk=2.0.0-p15
Tribe29 Checkmk=2.0.0-p16
Tribe29 Checkmk=2.0.0-p17
Tribe29 Checkmk=2.0.0-p18
Tribe29 Checkmk=2.0.0-p19
Tribe29 Checkmk=2.0.0-p2
Tribe29 Checkmk=2.0.0-p20
Tribe29 Checkmk=2.0.0-p21
Tribe29 Checkmk=2.0.0-p22
Tribe29 Checkmk=2.0.0-p23
Tribe29 Checkmk=2.0.0-p24
Tribe29 Checkmk=2.0.0-p25
Tribe29 Checkmk=2.0.0-p26
Tribe29 Checkmk=2.0.0-p27
Tribe29 Checkmk=2.0.0-p28
Tribe29 Checkmk=2.0.0-p29
Tribe29 Checkmk=2.0.0-p3
Tribe29 Checkmk=2.0.0-p30
Tribe29 Checkmk=2.0.0-p31
Tribe29 Checkmk=2.0.0-p32
Tribe29 Checkmk=2.0.0-p33
Tribe29 Checkmk=2.0.0-p34
Tribe29 Checkmk=2.0.0-p35
Tribe29 Checkmk=2.0.0-p36
Tribe29 Checkmk=2.0.0-p37
Tribe29 Checkmk=2.0.0-p38
Tribe29 Checkmk=2.0.0-p39
Tribe29 Checkmk=2.0.0-p4
Tribe29 Checkmk=2.0.0-p5
Tribe29 Checkmk=2.0.0-p6
Tribe29 Checkmk=2.0.0-p7
Tribe29 Checkmk=2.0.0-p8
Tribe29 Checkmk=2.0.0-p9
Tribe29 Checkmk=2.1.0
Tribe29 Checkmk=2.1.0-b1
Tribe29 Checkmk=2.1.0-b2
Tribe29 Checkmk=2.1.0-b3
Tribe29 Checkmk=2.1.0-b4
Tribe29 Checkmk=2.1.0-b5
Tribe29 Checkmk=2.1.0-b6
Tribe29 Checkmk=2.1.0-b7
Tribe29 Checkmk=2.1.0-b8
Tribe29 Checkmk=2.1.0-b9
Tribe29 Checkmk=2.1.0-p1
Tribe29 Checkmk=2.1.0-p10
Tribe29 Checkmk=2.1.0-p11
Tribe29 Checkmk=2.1.0-p12
Tribe29 Checkmk=2.1.0-p13
Tribe29 Checkmk=2.1.0-p14
Tribe29 Checkmk=2.1.0-p15
Tribe29 Checkmk=2.1.0-p16
Tribe29 Checkmk=2.1.0-p17
Tribe29 Checkmk=2.1.0-p18
Tribe29 Checkmk=2.1.0-p19
Tribe29 Checkmk=2.1.0-p2
Tribe29 Checkmk=2.1.0-p20
Tribe29 Checkmk=2.1.0-p21
Tribe29 Checkmk=2.1.0-p22
Tribe29 Checkmk=2.1.0-p23
Tribe29 Checkmk=2.1.0-p24
Tribe29 Checkmk=2.1.0-p25
Tribe29 Checkmk=2.1.0-p26
Tribe29 Checkmk=2.1.0-p27
Tribe29 Checkmk=2.1.0-p28
Tribe29 Checkmk=2.1.0-p29
Tribe29 Checkmk=2.1.0-p3
Tribe29 Checkmk=2.1.0-p30
Tribe29 Checkmk=2.1.0-p31
Tribe29 Checkmk=2.1.0-p32
Tribe29 Checkmk=2.1.0-p33
Tribe29 Checkmk=2.1.0-p34
Tribe29 Checkmk=2.1.0-p35
Tribe29 Checkmk=2.1.0-p36
Tribe29 Checkmk=2.1.0-p4
Tribe29 Checkmk=2.1.0-p5
Tribe29 Checkmk=2.1.0-p6
Tribe29 Checkmk=2.1.0-p7
Tribe29 Checkmk=2.1.0-p8
Tribe29 Checkmk=2.1.0-p9
Tribe29 Checkmk=2.2.0
Tribe29 Checkmk=2.2.0-b1
Tribe29 Checkmk=2.2.0-b2
Tribe29 Checkmk=2.2.0-b3
Tribe29 Checkmk=2.2.0-b4
Tribe29 Checkmk=2.2.0-b5
Tribe29 Checkmk=2.2.0-b6
Tribe29 Checkmk=2.2.0-b7
Tribe29 Checkmk=2.2.0-b8
Tribe29 Checkmk=2.2.0-i1
Tribe29 Checkmk=2.2.0-p1
Tribe29 Checkmk=2.2.0-p10
Tribe29 Checkmk=2.2.0-p11
Tribe29 Checkmk=2.2.0-p12
Tribe29 Checkmk=2.2.0-p13
Tribe29 Checkmk=2.2.0-p2
Tribe29 Checkmk=2.2.0-p3
Tribe29 Checkmk=2.2.0-p4
Tribe29 Checkmk=2.2.0-p5
Tribe29 Checkmk=2.2.0-p6
Tribe29 Checkmk=2.2.0-p7
Tribe29 Checkmk=2.2.0-p8
Tribe29 Checkmk=2.2.0-p9

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.


SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203