Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0551 Security Bulletin: Multiple security vulnerabilities have been identified in IBM Notes (CVE-2015-7981, CVE-2015-8126, CVE-2015-8540, CVE-2015-8472, CVE-2015-7575) 2 March 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Notes Publisher: IBM Operating System: Linux variants OS X Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Access Privileged Data -- Remote with User Interaction Denial of Service -- Remote with User Interaction Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2015-8540 CVE-2015-8472 CVE-2015-8126 CVE-2015-7981 CVE-2015-7575 Reference: ASB-2016.0004 ESB-2016.0547 ESB-2016.0542 ESB-2016.0539 ESB-2016.0538 ESB-2016.0536 ESB-2016.0525 ESB-2016.0523 ESB-2016.0522 Original Bulletin: http://www.ibm.com/support/docview.wss?uid=swg21975290 http://www.ibm.com/support/docview.wss?uid=swg21975365 Comment: This bulletin contains two (2) IBM security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: Vulnerability in MD5 Signature and Hash Algorithm affects IBM Notes (CVE-2015-7575) Document information More support for: IBM Notes Security Software version: 9.0.1.3, 9.0.1.4, 9.0.1.5 Operating system(s): Linux, OS X, Windows Reference #: 1975290 Modified date: 2016-03-01 Security Bulletin Summary The MD5 "SLOTH" vulnerability on TLS 1.2 affects IBM Notes. Vulnerability Details CVEID: CVE-2015-7575 DESCRIPTION: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials. CVSS Base Score: 7.1 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109415 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N) Affected Products and Versions IBM Notes 9.0.1 Fix Pack 3 Interim Fix 2 through 9.0.1 Fix Pack 5. NOTE: Since this vulnerability involves TLS 1.2, neither IBM Notes 9.0 nor IBM Notes 8.5.x are affected. Remediation/Fixes The Notes SLOTH vulnerability is tracked as SPR KLYHA5YRVP and a fix is introduced in the following releases: IBM Notes 9.0.1 Fixpack 5 IF 2 (for Windows) IBM Notes 9.0.1 Fixpack 5 IF 1 (for Linux) IBM Notes 64-bit 9.0.1 IF1 (for Mac 64-bit platform) For Fix download links, refer to the following technote: Notes & Domino 9.0.1 Fix Packs and Interim Fixes - http://www.ibm.com/support/docview.wss?uid=swg21657963 Customers who remain on the following releases may open a Service Request with IBM Support and reference SPR KLYHA5YRVP for a custom hotfix: IBM Notes 9.0.1 Fix Pack 3 IF3 and later IBM Notes 9.0.1 Fix Pack 4 and all Interim Fixes You should verify applying this fix does not cause any compatibility issues. The fix disables MD5 signature hash by default. If you change the default setting after applying the fix, you will expose yourself to the attack described above. IBM recommends that you review your entire environment to identify other areas where you have enabled the MD5 signature hash and take appropriate mitigation and remediation 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 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog Acknowledgement Reported to IBM by Karthikeyan Bhargavan at INRIA in Paris, France *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. - -------------------------------------------------------------------------- Security Bulletin: libpng related security vulnerabilities identified in IBM Notes (CVE-2015-7981, CVE-2015-8126, CVE-2015-8540, CVE-2015-8472) Document information More support for: IBM Notes Security Software version: 8.5.1.5, 8.5.2.4, 8.5.3.6, 9.0.1.5 Operating system(s): Linux, OS X, Windows Reference #: 1975365 Modified date: 2016-03-01 Security Bulletin Summary This security bulletin details libpng related security vulnerabilities and fixes available in IBM Notes. Vulnerability Details CVEID: CVE-2015-7981 DESCRIPTION: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information. CVSS Base Score: 5.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107740 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N) CVEID: CVE-2015-8126 DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions. By persuading a victim to open a specially-crafted PNG file, a remote attacker could overflow a buffer and execute arbitrary code on the system. CVSS Base Score: 7.8 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108010 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) CVEID: CVE-2015-8540 DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. CVSS Base Score: 9.8 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109219 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVEID: CVE- 2015-8472 DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_get_PLTE() and png_set_PLTE() functions. By persuading a victim to open a specially crafted PNG image, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash. CVSS Base Score: 6.3 CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/109392 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L) Affected Products and Versions IBM Notes 9.0.1 IBM Notes 9.0 IBM Notes 8.5.3 IBM Notes 8.5.2 IBM Notes 8.5.1 Remediation/Fixes CVE-2015-7981, CVE-2015-8126, CVE-2015-8540, CVE-2015-8472 are also tracked as SPR AYAVA67A8Z Product VRMF Remediation Fix IBM Notes 9.0.1 Fix Pack 5 Interim Fix 2 (Windows) http://www-01.ibm.com/support/docview.wss?uid=swg21657963#Notes_tab IBM Notes 64-bit 9.0.1 Interim Fix 1 (Mac) http://www-01.ibm.com/support/docview.wss?uid=swg21657963#Notes64_tab IBM Notes 8.5.3 Fix Pack 6 Interim Fix 9 (Windows / Mac) http://www-01.ibm.com/support/docview.wss?uid=swg21663874 Customers using following releases may open a PMR via the IBM Support Portal and reference SPR AYAVA67A8Z for custom fixes IBM Notes 9.0.1 (Linux Platform) IBM Notes 9.0 IBM Notes 8.5.3 (Linux Platform) IBM Notes 8.5.2 IBM Notes 8.5.1 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 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog *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: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBVtZbWX6ZAP0PgtI9AQJZ4g/+Id2QUHqnWNCZBe+lC/NNJT8KoGH5+fVe udj1KQLj6yC27arr47PA782dEOpTwmi3Z/QXTV2UJaGLk1k1ObnQsNomuE14Oax6 AddzYn6LBLw+AZcpq6/5pPeIf5ojCcFAJ/zUQjCZLVo7acXGrWfm6zZpfnhYf5KW zp/pGi4K2nlbc+mwyEuWM/847b6QYXanw4QY137kSku8PfhMvJH1KTZ7tkydJTow yQEVIAgkWlU2k6aQ2iEEY35A6dPitBAaUdHiNPjf2pJubmJ+Rq/hGEs67Lr7Rsx9 Y77nrZf3E6NaqsSA+MBUSnp4aWNyyYCjJksoQoVPrKzKbNCZmkDUgdmMJBOIp757 k3JD4dNy8jY8bdbx3R8b8i6QKj5egketL1DXT84QkjX5WWTnZOSLH7U3hrwagSRW /tHrM6JPWBQCqpLhpuDqh9jGOBQAcLqbfGWrl0H0L1QfA+1FSrtlxcmybLJvZGNw ZtxLbSVMsTv93hwTr0GSG6bvwkihLWI6RVKp9KL3kFBcjzwbjcUNXcMznZ8h8LsS EUDzZBJ+9lIXLl1TwWj71FCasnOtZqy5a5A0bSh8pfCNNfuIStM681duCicVOE5r oCDixlo1ZBLLh1S29AhC0vcNz0uchmwq/ESncrzWPMR9Hch4x1fttj82p4Wgv7O0 oCRLn0b2jSE= =Pf4s -----END PGP SIGNATURE-----