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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.2453 Vulnerability in kernel affects Power Hardware Management Console (CVE-2018-14633) 4 July 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Power HMC Publisher: IBM Operating System: Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-14633 Reference: ESB-2019.1800 ESB-2019.1793 ESB-2019.1097 ESB-2019.0138 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=ibm10956425 - --------------------------BEGIN INCLUDED TEXT-------------------- Vulnerability in kernel affects Power Hardware Management Console (CVE-2018-14633) Product: Power HMC Software version: All Versions Operating system(s): Platform Independent Reference #: 0956425 Security Bulletin Summary Power Hardware Management Console is affected by security vulnerabilities in the Linux Kernel. Power Hardware Management Console has addressed the applicable CVE. Vulnerability Details CVEID: CVE-2018-14633 DESCRIPTION: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable. CVSS Base Score: 7 CVSS Environmental Score*: Undefined CVSS Vector: ( CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H ) Affected Products and Versions Power HMC V8.7.0.0 Power HMC V9.1.930.0 Remediation/Fixes Remediation/Fixes The following fixes are available on IBM Fix Central at: http://www-933.ibm.com /support/fixcentral/ +------------------------------+--------------------------+--------------------------+----------------------------------+ | Product | VRMF | APAR | Remediation/Fix | +------------------------------+--------------------------+--------------------------+----------------------------------+ | Power HMC | V8.8.7.1 SP3 ppc | MB04210 | MH01824 | +------------------------------+--------------------------+--------------------------+----------------------------------+ | Power HMC | V8.8.7.1 SP3 x86 | MB04209 | MH01823 | +------------------------------+--------------------------+--------------------------+----------------------------------+ | Power HMC | V9.1.930.1 SP1 ppc | MB04213 | MH01826 | +------------------------------+--------------------------+--------------------------+----------------------------------+ | Power HMC | V9.1.930.0 SP1 x86 | MB04212 | MH01825 | +------------------------------+--------------------------+--------------------------+----------------------------------+ Workarounds and Mitigations None Change History Initial Version: 19 June 2019 - --------------------------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 iQIVAwUBXR2LQmaOgq3Tt24GAQj9PA//ZJXPAv7XqSjH7ARLaBIlT6HdrQyF0OLa wpPf51s/+cGXvN0zMH6TDXX+4GE4PEkysvvLgtVJpJLaSQ2mb4Rc4JGv7dSllGfh UQUuFfXlmc7LadmRLXHfmvy0qLJhDuQhr8fXkdurNzXOG8r0b36dJepgLff7/Bjr WlXme15dDVIeRfx+qHLWQaPLrO5X4kbT9IukYYD/2FAn4bT3WLBHWywfM8JvIX8l 7D7hjFMVp/c8mc+IUIllMNwfwj5BxAWWU2KOycct65tl/IWMnVBE6ZDrvUFgOEIU xfH3WXoj51R5vhdFq9+G/W365kqnBbDmKbbh8Y5QrXxweIucyO7YM/PBdQZJKJMS DFvoqLz449Wzzw5OdhsSS6rXFu39VhyJlbIUojXa9e2T2Xwnru+0XZNwxb86cuY7 XVJv5u6MRTCl9DKZA4Fb5LfZA3HhqLxohf99Eb0MeAypdpOhkagl4rsQ1MkTHhfT N5/kRIpX4MJ/iSpnZbt4PtoHmya1jZ/yOqncqd6X5xySTMSDhgG01HhGjIp401jF XKhvjahwFP8PeeHj7cEiv27cGYtEtXHT+Rxjx3zEu5/1PQpttTGVYY1qUoDfyBwP BPsjGB8FNH9BIGq6g+wyPZ46G65QRevoQfE8wa+5F+qSSR/vUnVvo/jKD/xDt2ZS Az+TDDwlSCI= =Sefx -----END PGP SIGNATURE-----