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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0509 WebSphere Application Server is vulnerable to a denial of service (CVE-2019-4720) 14 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: WebSphere Application Server Publisher: IBM Operating System: AIX HP-UX IBM i Linux variants Mac OS Solaris Windows Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-4720 Reference: ESB-2020.0455 ESB-2020.0382 Original Bulletin: https://www.ibm.com/support/pages/node/1285372 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: WebSphere Application Server is vulnerable to a denial of service (CVE-2019-4720) Security Bulletin Summary There is a denial of service vulnerablility in WebSphere Application Server. Vulnerability Details CVEID: CVE-2019-4720 DESCRIPTION: IBM WebSphere Application Server is vulnerable to a denial of service, caused by sending a specially-crafted request. A remote attacker could exploit this vulnerability to cause the server to consume all available memory. CVSS Base score: 7.5 CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/ 172125 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) | +------------------------------------+-------------------+ |WebSphere Application Server |9.0 | +------------------------------------+-------------------+ |WebSphere Application Server |7.0 | +------------------------------------+-------------------+ |WebSphere Application Server |8.0 | +------------------------------------+-------------------+ |WebSphere Application Server |8.5 | +------------------------------------+-------------------+ |WebSphere Application Server Liberty|Continuous Delivery| +------------------------------------+-------------------+ Remediation/Fixes The recommended solution is to apply the interim fix, Fix Pack or PTF containing the APAR for each named product as soon as practical. For WebSphere Application Server Liberty: . Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH19528 - --OR-- . Apply Fix Pack 20.0.0.2 or later (targeted availability 1Q2020). For WebSphere Application Server traditional and WebSphere Application Server Hypervisor Edition: For V9.0.0.0 through 9.0.5.2: . Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH19528 - --OR-- . Apply Fix Pack 9.0.5.3 or later (targeted availability 1Q2020). For V8.5.0.0 through 8.5.5.17: . Upgrade to minimal fix pack levels as required by interim fix and then apply Interim Fix PH19528 - --OR-- . Apply Fix Pack 8.5.5.18 or later (targeted availability 3Q2020). For V8.0.0.0 through 8.0.0.15: . Upgrade to 8.0.0.15 and then apply Interim Fix PH19528 For V7.0.0.0 through 7.0.0.45: . Upgrade to 7.0.0.45 and then apply Interim Fix PH19528 Additional interim fixes may be available and linked off the interim fix download page. WebSphere Application Server V7.0 and V8.0 are no longer in full support; IBM recommends upgrading to a fixed, supported version/release/platform of the product. Workarounds and Mitigations None - --------------------------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. 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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 iQIVAwUBXkX+hGaOgq3Tt24GAQjp8BAAtChYqfrL8DNmBVX0+KdqBb+NexUDfdDJ /SuofbGL57mPgQLDZOX9k5yXL29UsVUeuJw5uBJZXVbu79oKcvuSfmywNFqFzuLr 5NT0Fl+4zr/TBDpWxe6qBrZnqgxwEyn8X2YnROtHQ1dMEmQwPrnPC+zOPmNFp+6r 1/Iome9EUTttB8cMBZLGIHeDrith/B7rOAnuRltkhdOCpyJ0KUcC9nKjHEC+zi5J b8iNLN3mekW72oK4VE1KMKYBFafEN6xE0quPgTi1bgad817itgKTS1jmkETo9FQY OLsICzHLEVHaWiXdf6agnzGqKwz65lK8XSBRZDhtsaW3ZD8i77KvM3qMs6m3xcg6 I2VVsOqKdfVqbcx6mSHYH/hfggQvgfeNspFVbJPk4kTWnRqolqbjapYHE2V+3X4Y By47WLkQ88EYeef3tlv0f1x5JgNH3d+cuBRNL6YFEamFVFWHp+n1BkBm7YJP+PVO F0dvh8fM8fhJ691zhqy8djc+tDxS+boOahgeO0rPe4FesaIYl/9NpAijhC2uxjL2 zPz7OYyCrGBMqe/DcnWk7y3Yslv1JiAuIQj7XU9GPdG4NhZV2ajLkuBbJpgWP2zH xDXMiLLGfrcOHPefduzjwdrRMzqQpM/V+vxgH0wksUIJbPw1RbOpfyujmziKAxN6 2l5TqJt/xCk= =DfIY -----END PGP SIGNATURE-----