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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT Security Bulletin ASB-2017.0210 Mozilla bulletin: Security vulnerabilities fixed in Firefox 8 December 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Firefox Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Access Confidential Data -- Remote with User Interaction Reduced Security -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2017-7845 CVE-2017-7843 Member content until: Sunday, January 7 2018 Reference: ASB-2017.0207 ESB-2017.3118 ESB-2017.3106 OVERVIEW "Security vulnerabilities fixed in Firefox 57.0.1 and ESR 52.5.2" [1,2] IMPACT Mozilla has given the following information concerning these vulnerabilities: "#CVE-2017-7845: Buffer overflow when drawing and validating elements with ANGLE library using Direct 3D 9 REPORTER Omair IMPACT CRITICAL Description A buffer overflow occurs when drawing and validating elements using Direct 3D 9 with the ANGLE graphics library, used for WebGL content. This is due to an incorrect value being passed within the library during checks and results in a potentially exploitable crash. Note: This attack only affects Windows operating systems. Other operating systems are unaffected. References Bug 1402372 #CVE-2017-7843: Web worker in Private Browsing mode can write IndexedDB data REPORTER Konark IMPACT HIGH Description When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. References Bug 1410106" [1,2] MITIGATION Mozilla recommends updating Firefox to version 57.0.1 and ESR 52.5.2 [1,2] REFERENCES [1] Mozilla Foundation Security Advisory 2017-28 https://www.mozilla.org/en-US/security/advisories/mfsa2017-28/ [2] Mozilla Foundation Security Advisory 2017-29 https://www.mozilla.org/en-US/security/advisories/mfsa2017-29/ AusCERT has made every effort to ensure that the information contained in this document is accurate. However, the decision to use the information described is the responsibility of each user or organisation. 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. =========================================================================== 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 iQIVAwUBWioYZox+lLeg9Ub1AQjwfA/9HxpDvX2yl9xhAfannZOlisF0zUTQ4xLT uKsFUgoYfJB3NCVJqjqfISa2um3nqsP9/CJAnVA7ioEGAZ/ncRzpC77MDiA/gDWV X6qrt95e1AsgfJfYgMUsfJdpX5UERZw38swaV923YZkRCv1g4eGD8MP1a2fgvssw iAO1O7dYIQDWX4vPj+6WIdN1fGHhoToiizCbb0DtwUt4HryYd3gAatHdlC7VSdnW LOV2r3e0lY+rVGNMZ6sJTqTL3cMjd1+Qdvs1E9r6lsjs+azB5tRzGnfc4dAL62V4 7Rhm7Rndfhe/pIq6pEXuEP3xwofIfsK66zKzoX9LoppRoR6kcVqBDt4LZ4C9irc1 Z1qtj+HaOmpYk9r+LujHLc83TqFpWd8VEN3voo/6D4za4cNBCiKp7YWf+Z8R/VUS pSW2j7j5li0WK0Gn0fdSHkc2SANB2mHc+J0gfKYAvgkCgPcBAv4oKiP/h4kJlasX qlDk5tcJaMrZKoTw7oEgfKP+FHcwqiidudUQd6jPzEUCK9HV+fgr4TnINweEM1+3 Z74qRo7eSa/JbrmLq3ovqDvzihPzTQtrD4UE2SfwWmDtpHhqJSXLovLZwxYUhNAI 0zaYNEuVvbAfmuJajcAPmwJDanBfspaUyujtm4TePtZ8gK/Gedx9yqO17nU31axO bbDa9ZFPfYg= =t07W -----END PGP SIGNATURE-----