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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0925.4 USN-3918-1: Firefox vulnerabilities 17 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: firefox Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Access Privileged Data -- Remote with User Interaction Create Arbitrary Files -- Remote with User Interaction Denial of Service -- Remote with User Interaction Provide Misleading Information -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-9809 CVE-2019-9808 CVE-2019-9807 CVE-2019-9806 CVE-2019-9805 CVE-2019-9803 CVE-2019-9802 CVE-2019-9799 CVE-2019-9797 CVE-2019-9796 CVE-2019-9795 CVE-2019-9793 CVE-2019-9792 CVE-2019-9791 CVE-2019-9790 CVE-2019-9789 CVE-2019-9788 Reference: ASB-2019.0082 ESB-2019.0917 ESB-2019.0909 Original Bulletin: https://usn.ubuntu.com/3918-1/ https://usn.ubuntu.com/3918-2/ https://usn.ubuntu.com/3918-3/ https://usn.ubuntu.com/3918-4/ Comment: This bulletin contains four (4) Ubuntu security advisories. Revision History: April 17 2019: Added USN-3918-4 firefox regressions March 29 2019: Added USN-3918-3 firefox regression March 26 2019: Added USN-3918-2 March 22 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3918-1: Firefox vulnerabilities 21 March 2019 firefox vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.10 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary Several security issues were fixed in Firefox. Software Description o firefox - Mozilla Open Source web browser 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 cause a denial of service via application crash, denial of service via successive FTP authorization prompts or modal alerts, trick the user with confusing permission request prompts, obtain sensitive information, conduct social engineering attacks, or execute arbitrary code. (CVE-2019-9788, CVE-2019-9789, CVE-2019-9790, CVE-2019-9791, CVE-2019-9792, CVE-2019-9795, CVE-2019-9796, CVE-2019-9797, CVE-2019-9799, CVE-2019-9802, CVE-2019-9805, CVE-2019-9806, CVE-2019-9807, CVE-2019-9808, CVE-2019-9809) A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. If a user were tricked in to opening a specially crafted website with Spectre mitigations disabled, an attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2019-9793) It was discovered that Upgrade-Insecure-Requests was incorrectly enforced for same-origin navigation. An attacker could potentially exploit this to conduct man-in-the-middle (MITM) attacks. (CVE-2019-9803) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 firefox - 66.0+build3-0ubuntu0.18.10.1 Ubuntu 18.04 LTS firefox - 66.0+build3-0ubuntu0.18.04.1 Ubuntu 16.04 LTS firefox - 66.0+build3-0ubuntu0.16.04.2 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 CVE-2019-9788 o CVE-2019-9789 o CVE-2019-9790 o CVE-2019-9791 o CVE-2019-9792 o CVE-2019-9793 o CVE-2019-9795 o CVE-2019-9796 o CVE-2019-9797 o CVE-2019-9799 o CVE-2019-9802 o CVE-2019-9803 o CVE-2019-9805 o CVE-2019-9806 o CVE-2019-9807 o CVE-2019-9808 o CVE-2019-9809 - -------------------------------------------------------------------------------- USN-3918-2: Firefox vulnerabilities 25 March 2019 firefox vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 14.04 LTS Summary Several security issues were fixed in Firefox. Software Description o firefox - Mozilla Open Source web browser Details USN-3918-1 fixed vulnerabilities in Firefox. This update provides the corresponding updates for Ubuntu 14.04 LTS. 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 cause a denial of service via application crash, denial of service via successive FTP authorization prompts or modal alerts, trick the user with confusing permission request prompts, obtain sensitive information, conduct social engineering attacks, or execute arbitrary code. (CVE-2019-9788, CVE-2019-9789, CVE-2019-9790, CVE-2019-9791, CVE-2019-9792, CVE-2019-9795, CVE-2019-9796, CVE-2019-9797, CVE-2019-9799, CVE-2019-9802, CVE-2019-9805, CVE-2019-9806, CVE-2019-9807, CVE-2019-9808, CVE-2019-9809) A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. If a user were tricked in to opening a specially crafted website with Spectre mitigations disabled, an attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2019-9793) It was discovered that Upgrade-Insecure-Requests was incorrectly enforced for same-origin navigation. An attacker could potentially exploit this to conduct man-in-the-middle (MITM) attacks. (CVE-2019-9803) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS firefox - 66.0.1+build1-0ubuntu0.14.04.1 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-3918-1 o CVE-2019-9788 o CVE-2019-9789 o CVE-2019-9790 o CVE-2019-9791 o CVE-2019-9792 o CVE-2019-9793 o CVE-2019-9795 o CVE-2019-9796 o CVE-2019-9797 o CVE-2019-9799 o CVE-2019-9802 o CVE-2019-9803 o CVE-2019-9805 o CVE-2019-9806 o CVE-2019-9807 o CVE-2019-9808 o CVE-2019-9809 - -------------------------------------------------------------------------------- USN-3918-3: Firefox regression 28 March 2019 firefox regression A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.10 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS o Ubuntu 14.04 LTS Summary USN-3918-1 caused a regression in Firefox. Software Description o firefox - Mozilla Open Source web browser Details USN-3918-1 fixed vulnerabilities in Firefox. The update caused web compatibility issues with some websites. 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 cause a denial of service via application crash, denial of service via successive FTP authorization prompts or modal alerts, trick the user with confusing permission request prompts, obtain sensitive information, conduct social engineering attacks, or execute arbitrary code. (CVE-2019-9788, CVE-2019-9789, CVE-2019-9790, CVE-2019-9791, CVE-2019-9792, CVE-2019-9795, CVE-2019-9796, CVE-2019-9797, CVE-2019-9799, CVE-2019-9802, CVE-2019-9805, CVE-2019-9806, CVE-2019-9807, CVE-2019-9808, CVE-2019-9809) A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. If a user were tricked in to opening a specially crafted website with Spectre mitigations disabled, an attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2019-9793) It was discovered that Upgrade-Insecure-Requests was incorrectly enforced for same-origin navigation. An attacker could potentially exploit this to conduct man-in-the-middle (MITM) attacks. (CVE-2019-9803) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 firefox - 66.0.2+build1-0ubuntu0.18.10.1 Ubuntu 18.04 LTS firefox - 66.0.2+build1-0ubuntu0.18.04.1 Ubuntu 16.04 LTS firefox - 66.0.2+build1-0ubuntu0.16.04.1 Ubuntu 14.04 LTS firefox - 66.0.2+build1-0ubuntu0.14.04.1 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-3918-1 o LP: 1822185 - -------------------------------------------------------------------------------- USN-3918-4: Firefox regressions 16 April 2019 firefox regressions A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.10 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS o Ubuntu 14.04 LTS Summary USN-3918-1 caused a regression in Firefox. Software Description o firefox - Mozilla Open Source web browser Details USN-3918-1 fixed vulnerabilities in Firefox. The update caused web compatibility and performance issues with some websites. 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 cause a denial of service via application crash, denial of service via successive FTP authorization prompts or modal alerts, trick the user with confusing permission request prompts, obtain sensitive information, conduct social engineering attacks, or execute arbitrary code. (CVE-2019-9788, CVE-2019-9789, CVE-2019-9790, CVE-2019-9791, CVE-2019-9792, CVE-2019-9795, CVE-2019-9796, CVE-2019-9797, CVE-2019-9799, CVE-2019-9802, CVE-2019-9805, CVE-2019-9806, CVE-2019-9807, CVE-2019-9808, CVE-2019-9809) A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. If a user were tricked in to opening a specially crafted website with Spectre mitigations disabled, an attacker could potentially exploit this to cause a denial of service, or execute arbitrary code. (CVE-2019-9793) It was discovered that Upgrade-Insecure-Requests was incorrectly enforced for same-origin navigation. An attacker could potentially exploit this to conduct man-in-the-middle (MITM) attacks. (CVE-2019-9803) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 firefox - 66.0.3+build1-0ubuntu0.18.10.1 Ubuntu 18.04 LTS firefox - 66.0.3+build1-0ubuntu0.18.04.1 Ubuntu 16.04 LTS firefox - 66.0.3+build1-0ubuntu0.16.04.1 Ubuntu 14.04 LTS firefox - 66.0.3+build1-0ubuntu0.14.04.1 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-3918-1 o LP: 1825051 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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