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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3898 Security Bulletin: IBM MQ is vulnerable to an issue in Eclipse Jetty (CVE-2021-28165) 16 November 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM MQ Publisher: IBM Operating System: Windows Linux variants Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-28165 Reference: ASB-2021.0214 ASB-2021.0212 ESB-2021.3447 ESB-2021.3256 ESB-2021.2896 Original Bulletin: https://www.ibm.com/support/pages/node/6516422 - --------------------------BEGIN INCLUDED TEXT-------------------- IBM MQ is vulnerable to an issue in Eclipse Jetty (CVE-2021-28165) Document Information Document number : 6516422 Modified date : 15 November 2021 Product : IBM MQ Component : Explorer, Salesforce Bridge, Blockchain Bridge Software version : 9.0.0, 9.1.0, 9.2.0 Operating system(s): Linux Windows Edition : All Summary An issue was identified in Eclipse Jetty that affects IBM MQ. Eclipse Jetty is used within the MQ Explorer, MQ Salesforce Bridge and MQ Blockchain Bridge components. Vulnerability Details CVEID: CVE-2021-28165 DESCRIPTION: Eclipse Jetty is vulnerable to a denial of service, caused by improper input valistion. By sending a specially-crafted TLS frame, a remote attacker could exploit this vulnerability to cause CPU resources to reach to 100% usage. CVSS Base score: 7.5 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 199305 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) Affected Products and Versions +--------------------+----------+ |Affected Product(s) |Version(s)| +--------------------+----------+ |IBM MQ |9.2 LTS | +--------------------+----------+ |IBM MQ |9.2 CD | +--------------------+----------+ |IBM MQ |9.1 LTS | +--------------------+----------+ |IBM MQ |9.1 CD | +--------------------+----------+ |IBM MQ |9.0 LTS | +--------------------+----------+ Remediation/Fixes This issue was resolved under APAR IT37719 IBM MQ version 9.2 LTS Apply FixPack 9.2.0.3 IBM MQ version 9.1 CD and 9.2 CD Upgrade to IBM MQ 9.2.3 IBM MQ version 9.1 LTS Apply FixPack 9.1.0.9 IBM MQ version 9.0 LTS Apply FixPack 9.0.0.12 Workarounds and Mitigations None Change History 05 Nov 2021: Initial Publication - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYZMRnONLKJtyKPYoAQhHHBAAiqJ7BgAiP80rpYLCkShBnD8XR5MDuq9h MfvCJbHe3HCogZmFBbupg7HiRQD88IMtetOiE84Foly7HVAePFS8XiWFJAiGEO6S VxaQnjKrSD/DhR4QfBCQvaKKJ+KuFlUGbbl+MSMPOdYmmWa9xV0G/wSy1ycMSimq qKREQkoPyenMhIvQsadyPpPtSM/dVsOozWewSEJ3wz8s5qHahVi+JmSBRmZzyAl2 wSelJDrSmSw/wWh1o3YrG+tzZ9Ga+0JXsnErBmDowRxZj7O7+tmmizgkaSWcV5iM 6r7A7pfLcn5q53fajxPcs3f+YDunHK7PU0iNtK9v1dTe1M/ITTACOpChXPVIZTRH fBnsAFGRAFVQr7ow/SF1n43DOQTk8cvCysuwnTk4MVsJwnlfCDO8m04F6DOGQpcA Akc1ecSs8zsfFliB3uqSrH5Pd7/IYWINvPjrxgkoHVAKosVReft3rlNAWkqz/7+L InqaFLrpMnUjud2DAuJawmkTAoxpkI9P3AaLXWrn3vi2gZTZm0eAN20ETBkh/R6A oxeAvOHZMJzHO+L1PvbS1W6alwfHbZn5/BsykJwqz+3lYlzoW9e/asMWYS8/Fezm EF7cY1KSLdyanxjPzJvQYwBwYoyMLzPpJ5jcU5EkMRSiTVNwHtfO4gbe6oOGZtB9 VClDGBcvKrw= =QxgW -----END PGP SIGNATURE-----