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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.2214 Security Bulletin: IBM MQ is vulnerable to a denial of service attack due to an error within the Data Conversion logic. (CVE-2020-4310) 29 June 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM MQ Appliance Publisher: IBM Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-4310 Original Bulletin: https://www.ibm.com/support/pages/node/6239372 - --------------------------BEGIN INCLUDED TEXT-------------------- IBM MQ is vulnerable to a denial of service attack due to an error within the Data Conversion logic. (CVE-2020-4310) Security Bulletin Summary An issue was found within the data conversion logic that could cause a SIGSEGV and denial of service. Vulnerability Details CVEID: CVE-2020-4310 DESCRIPTION: IBM MQ and MQ Appliance 7.1, 7.5, 8.0, 9.0 LTS, 9.1 LTS, and 9.1 CD are vulnerable to a denial of service attack due to an error within the Data Conversion logic. IBM X-Force ID: 177081. CVSS Base score: 5.9 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 177081 for the current score. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H) Affected Products and Versions +--------------------+----------+ |Affected Product(s) |Version(s)| +--------------------+----------+ |IBM MQ Appliance |8.0 | +--------------------+----------+ |IBM MQ Appliance |9.1 LTS | +--------------------+----------+ |IBM MQ Appliance |9.1 CD | +--------------------+----------+ Remediation/Fixes IBM MQ Appliance 8 Apply FixPack 8.0.0.15 IBM MQ Appliance 9.1 LTS Apply FixPack 9.1.0.5 IBM MQ Appliance 9.1 CD Apply FixPack 9.1.5 Workarounds and Mitigations None Get Notified about Future Security Bulletins References - --------------------------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 iQIVAwUBXvlI4eNLKJtyKPYoAQh97g/8D5Xj1FrpufLPBzDChLBabH/+xjfEkIa+ tQ1BIiD0GjMVhlzT9fLsSJR3jGKZ7SHSutXWIqqAKBjwx3JPT8+p5CEEijbncLYg AaTzVqGkJ2pjPTs5KuSncTb8ChW7lGLLFTy1j6vRo2qxwqfFWISvrltPDJ+T4xX2 Th7URufbxK8p39XVO4OlUoiCzzloq6R5nkdn+I6lcW2aiXonQXd30teagHAILzOq +JLR94v5RJWEjbUWZRvOEe5ROgjVWlzWdnmoT/X0SoV6ksM/g7NRMwuVJfuhaB9u 7fuY3hsWgfimX6vR0jj+A0Qh9qynI+O56CXSl4Uz4AGFce7+C8MD1efs2bIQDzS/ 6CltC/IaqC5k5XVPSncXSD2vjRvDxpKPc27+we66TeVKF4cawMSihqaHQlgn8cnR +hXhQmKuI4TspXebJyTH87+9kB5NbpsqjJz72fMnIlqwlFPGwky60gnF0Q1Yrqyt QTFcRWS2aGrF/Pay/EQvLxOVr3ijk8GPEekKeIAL/+Qf5HzGW66kzsrrzNTNx4tp kpFExxAh0RJOVtQ/A9IhSy3bqKVrtEK1RABmkaRHgvB5NELKLg+jZErBJW1/vziH 4nfNL5Gcugg68gHizpu0q6EscFhDaj1Gpb8FZSTRGwgHG2HA7dxHFYvVfqbsswwN PjccRvDC3hA= =3v/U -----END PGP SIGNATURE-----