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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4026 Security Bulletin: Denial of service vulnerability in WebSphere Application Server Liberty (CVE-2019-12402) 30 October 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM WebSphere Application Server Publisher: IBM Operating System: AIX HP-UX IBM i Linux variants Solaris Windows z/OS Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-12402 Reference: ESB-2019.3257 Original Bulletin: https://www.ibm.com/support/pages/node/1074156 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Denial of service vulnerability in WebSphere Application Server Liberty (CVE-2019-12402) Document Information More support for: WebSphere Application Server Component: Liberty Software version: All Versions Operating system(s): AIX; HP-UX; IBM i; Linux; Solaris; Windows; z/OS Software edition: Liberty Reference #: 1074156 Modified date: 29 October 2019 Security Bulletin Summary There is a denial of service vulnerability in WebSphere Application Server Liberty. This vulnerability has been addressed. Vulnerability Details CVEID: CVE-2019-12402 DESCRIPTION: Apache Commons Compress is vulnerable to a denial of service, caused by an error in the internal file name encoding algorithm. By persuading a victim to open specially crafted ZIP archive containing malicious input, a remote attacker could exploit this vulnerability to cause the application to enter into an infinite loop. CVSS Base Score: 4.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/ 165956 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L) Affected Products and Versions These vulnerabilities affect the following versions and releases of IBM WebSphere Application Server: o Liberty 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 using collectiveMember-1.0 or collectiveController-1.0 feature: . Apply Fix Pack 19.0.0.9 or later. Get Notified about Future Security Bulletins Subscribe to My Notifications to be notified of important product support alerts like this. References Complete CVSS v3 Guide On-line Calculator v3 Off Related Information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Change History 29 October 2019:original document published *The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin. Disclaimer According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. - --------------------------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 iQIVAwUBXbkRW2aOgq3Tt24GAQgbew/+NW0C/+moY9VU0o1Bt4IFhaLqVGk3gEVx eiPzl9sga3ixzVpIqCPQZ31w+5gW2xMDyAfY3Z14PriejZ7yemWTIiS0vXwVwjVa y9cHG4pjGEaSbViwUunj4yapCC5+RTaPnqSi1AUOVm3e8ben3fpvpmisrUD+w1wk RwIUGYnzplIQ9yQyt0KDDSYyI0ie1/qOAehVcjn9FFHA2xHVPn18eJDfFOeNdGOQ qBHDMN/SUkKxlpt8KNkghrix6x/m95Cd+Xp/SoVx7No6KV7+xo/yQVMbO+itZPUQ RWjX/MQlu1TZzvlcCbj6XkJYNRsvs8VqHhVWFSRO3+y1UzgswPP3YafSMVEVgfLN rnkdDvPh2yYnzpEp1ZaS4cOJ+U848dcBxoRVDcN9uQ2web44nBdb92/IIz4lcVv1 EsjYDoGHmXt7xo3bZ8g4tyJsLFjcWfochMBctc47Gtg7tVJHu1jZcEJBZdnU2o3r V2yrzFtQobxZnRHPGgSBCNTVvOYKhwZV0b5rnOPWxb6Y/Rh/Nu1nNAdKhnyWoygc PCUk/D4lq96rA1dT2eFt+VM+FZnXrKqSRF8KQJVbSTC9r7ThIkDSCS4i3AH0xlIe oWFGf/iXENcv20kwyPEFZXGYCw9olImRXxVdiYEjKMkWSy48vx5pxIQv7hHT/pu3 a2zxB+xebIY= =Vv8U -----END PGP SIGNATURE-----