Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3373.2 USN-4122-2: Firefox vulnerabilities 10 October 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Firefox Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Increased Privileges -- Existing Account Access Privileged Data -- Remote with User Interaction Modify Arbitrary Files -- Existing Account Cross-site Scripting -- Remote with User Interaction Denial of Service -- Remote with User Interaction Access Confidential Data -- Remote/Unauthenticated Reduced Security -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-11752 CVE-2019-11750 CVE-2019-11749 CVE-2019-11748 CVE-2019-11747 CVE-2019-11746 CVE-2019-11744 CVE-2019-11743 CVE-2019-11742 CVE-2019-11741 CVE-2019-11740 CVE-2019-11738 CVE-2019-11737 CVE-2019-11735 CVE-2019-11734 CVE-2019-9812 CVE-2019-5849 Reference: ASB-2019.0252 ESB-2019.3359 ESB-2019.3085 Original Bulletin: https://usn.ubuntu.com/4122-1/ Revision History: October 10 2019: Updated to USN 4122-2 September 5 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4122-2: Firefox regression 8 October 2019 firefox regression A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.04 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary USN-4122-1 caused a regression in Firefox. Software Description o firefox - Mozilla Open Source web browser Details USN-4122-1 fixed vulnerabilities in Firefox. The update caused a regression that resulted in a crash when changing YouTube playback speed in some circumstances. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to obtain sensitive information, bypass Content Security Policy (CSP) protections, bypass same-origin restrictions, conduct cross-site scripting (XSS) attacks, cause a denial of service, or execute arbitrary code. (CVE-2019-5849, CVE-2019-11734, CVE-2019-11735, CVE-2019-11737, CVE-2019-11738, CVE-2019-11740, CVE-2019-11742, CVE-2019-11743, CVE-2019-11744, CVE-2019-11746, CVE-2019-11748, CVE-2019-11749, CVE-2019-11750, CVE-2019-11752) It was discovered that a compromised content process could log in to a malicious Firefox Sync account. An attacker could potentially exploit this, in combination with another vulnerability, to disable the sandbox. (CVE-2019-9812) It was discovered that addons.mozilla.org and accounts.firefox.com could be loaded in to the same content process. An attacker could potentially exploit this, in combination with another vulnerability that allowed a cross-site scripting (XSS) attack, to modify browser settings. (CVE-2019-11741) It was discovered that the "Forget about this site" feature in the history pane removes HTTP Strict Transport Security (HSTS) settings for sites on the pre-load list. An attacker could potentially exploit this to bypass the protections offered by HSTS. (CVE-2019-11747) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 firefox - 69.0.2+build1-0ubuntu0.19.04.1 Ubuntu 18.04 LTS firefox - 69.0.2+build1-0ubuntu0.18.04.1 Ubuntu 16.04 LTS firefox - 69.0.2+build1-0ubuntu0.16.04.1 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . After a standard system update you need to restart Firefox to make all the necessary changes. References o USN-4122-1 o LP: 1847354 - --------------------------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 iQIVAwUBXZ6nUGaOgq3Tt24GAQjZlBAAxx5GvI2Nyr9Mjr4BwjcPSkCzOlT/rbDy bIW7R1ikr2oUQOE5ffMlI9w3XNSMx9obG7zTBCGK5zsf1dxfx+ivpRc+vDFQ4rss SrrIGcGL6FBED4tA1Z20/p2rZe6q9kcO6v0DGDPBK88ys/NMlI7FRZj4U9MSRGG6 EagP93qJtSQQ0s3pNgtbtX9uP8J0EVcX8nB/WRekd10kqu3iqQfbpLP0oPDOL9ii ogtXIOFK6XOGUeyqstNdPVnNSSLwfwCrQ1VWOh23RSiI7U86Yg2VzzWH9iUtQlK1 zWX3qqiuJ/OtbCDskKU5ZzbTuDVCCVfr63O+0NExhFXAnA4DI7ZQXT7/2UsaCp+l iVjzaLE/1h4+LPqVx/R6wm78Rye+wv91uRuDlSyj9G1my1GZGUWAzPG1Dt/xZlB8 ISbLKuRvyhnQye5PG8CuSvw7/PTtzObaHumlUX9nWMCdPPv1D3URbV5Iemzqc4+f YVdGyiwmrA2a0ufE3aINXlMUx92SyUwV0Cp1Tugp9ETEOujAab6R1/baIxevfTPz VJzd4eo6k6FMeQE1WVVDqrP+FCy/4XfGaNnIj+JmpEA0Gt8fUGmPGUFJefhhyrvN UGCaW+D7lXZ10nB6wiBzpmTil6ndJD6Qj1Mq4eYUYRjDI+pE8btEj5J6sjqK6lt2 CINW8f2SD0c= =wE/6 -----END PGP SIGNATURE-----