{"id":"USN-2743-4","aliases":[],"status":"published","title":"firefox regression","description":"USN-2743-1 fixed vulnerabilities in Firefox. After upgrading, some users\nreported problems with bookmark creation and crashes in some\ncircumstances. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n Andrew Osmond, Olli Pettay, Andrew Sutherland, Christian Holler, David\n Major, Andrew McCreight, Cameron McCormack, Bob Clary and Randell Jesup\n discovered multiple memory safety issues in Firefox. If a user were\n tricked in to opening a specially crafted website, an attacker could\n potentially exploit these to cause a denial of service via application\n crash, or execute arbitrary code with the privileges of the user invoking\n Firefox. (CVE-2015-4500, CVE-2015-4501)\n \n André Bargull discovered that when a web page creates a scripted proxy\n for the window with a handler defined a certain way, a reference to the\n inner window will be passed, rather than that of the outer window.\n (CVE-2015-4502)\n \n Felix Gröbert discovered an out-of-bounds read in the QCMS color\n management library in some circumstances. If a user were tricked in to\n opening a specially crafted website, an attacker could potentially exploit\n this to cause a denial of service via application crash, or obtain\n sensitive information. (CVE-2015-4504)\n \n Khalil Zhani discovered a buffer overflow when parsing VP9 content in some\n circumstances. If a user were tricked in to opening a specially crafted\n website, an attacker could potentially exploit this to cause a denial of\n service via application crash, or execute arbitrary code with the\n privileges of the user invoking Firefox. (CVE-2015-4506)\n \n Spandan Veggalam discovered a crash while using the debugger API in some\n circumstances. If a user were tricked in to opening a specially crafted\n website whilst using the debugger, an attacker could potentially exploit\n this to execute arbitrary code with the privileges of the user invoking\n Firefox. (CVE-2015-4507)\n \n Juho Nurminen discovered that the URL bar could display the wrong URL in\n reader mode in some circumstances. If a user were tricked in to opening a\n specially crafted website, an attacker could potentially exploit this to\n conduct URL spoofing attacks. (CVE-2015-4508)\n \n A use-after-free was discovered when manipulating HTML media content in\n some circumstances. If a user were tricked in to opening a specially\n crafted website, an attacker could potentially exploit this to cause a\n denial of service via application crash, or execute arbitrary code with\n the privileges of the user invoking Firefox. (CVE-2015-4509)\n \n Looben Yang discovered a use-after-free when using a shared worker with\n IndexedDB in some circumstances. If a user were tricked in to opening a\n specially crafted website, an attacker could potentially exploit this to\n cause a denial of service via application crash, or execute arbitrary code\n with the privileges of the user invoking Firefox. (CVE-2015-4510)\n \n Francisco Alonso discovered an out-of-bounds read during 2D canvas\n rendering in some circumstances. If a user were tricked in to opening a\n specially crafted website, an attacker could potentially exploit this to\n obtain sensitive information. (CVE-2015-4512)\n \n Jeff Walden discovered that changes could be made to immutable properties\n in some circumstances. If a user were tricked in to opening a specially\n crafted website, an attacker could potentially exploit this to execute\n arbitrary script in a privileged scope. (CVE-2015-4516)\n \n Ronald Crane reported multiple vulnerabilities. If a user were tricked in\n to opening a specially crafted website, an attacker could potentially\n exploit these to cause a denial of service via application crash, or\n execute arbitrary code with the privileges of the user invoking Firefox.\n (CVE-2015-4517, CVE-2015-4521, CVE-2015-4522, CVE-2015-7174,\n CVE-2015-7175, CVE-2015-7176, CVE-2015-7177, CVE-2015-7180)\n \n Mario Gomes discovered that dragging and dropping an image after a\n redirect exposes the redirected URL to scripts. An attacker could\n potentially exploit this to obtain sensitive information. (CVE-2015-4519)\n \n Ehsan Akhgari discovered 2 issues with CORS preflight requests. An\n attacker could potentially exploit these to bypass CORS restrictions.\n (CVE-2015-4520)","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2015-10-05T12:36:50Z","modified":"2026-04-22T09:17:01Z","fixes":[{"ecosystem":"Ubuntu:14.04:LTS","package":"firefox","fixed_in":["41.0.1+build2-0ubuntu0.14.04.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Ubuntu:14.04:LTS","package":"firefox","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"41.0.1+build2-0ubuntu0.14.04.1"}]}],"versions":["24.0+build1-0ubuntu1","25.0+build3-0ubuntu0.13.10.1","28.0~b2+build1-0ubuntu2","28.0+build1-0ubuntu1","28.0+build2-0ubuntu1","28.0+build2-0ubuntu2","29.0+build1-0ubuntu0.14.04.2","30.0+build1-0ubuntu0.14.04.3","31.0+build1-0ubuntu0.14.04.1","32.0+build1-0ubuntu0.14.04.1","32.0.3+build1-0ubuntu0.14.04.1","33.0+build2-0ubuntu0.14.04.1","34.0+build2-0ubuntu0.14.04.1","35.0+build3-0ubuntu0.14.04.2","35.0.1+build1-0ubuntu0.14.04.1","36.0+build2-0ubuntu0.14.04.4","36.0.1+build2-0ubuntu0.14.04.1","36.0.4+build1-0ubuntu0.14.04.1","37.0+build2-0ubuntu0.14.04.1","37.0.1+build1-0ubuntu0.14.04.1","37.0.2+build1-0ubuntu0.14.04.1","38.0+build3-0ubuntu0.14.04.1","39.0+build5-0ubuntu0.14.04.1","39.0.3+build2-0ubuntu0.14.04.1","40.0+build4-0ubuntu0.14.04.1","40.0+build4-0ubuntu0.14.04.4","40.0.3+build1-0ubuntu0.14.04.1","41.0+build3-0ubuntu0.14.04.1"]}],"references":[{"url":"https://ubuntu.com/security/notices/USN-2743-4","tags":["advisory"]},{"url":"https://launchpad.net/bugs/1501277","tags":["report"]}],"sources":{"osv":[{"id":"USN-2743-4","title":"firefox regression","description":"USN-2743-1 fixed vulnerabilities in Firefox. After upgrading, some users\nreported problems with bookmark creation and crashes in some\ncircumstances. This update fixes the problem.\n\nWe apologize for the inconvenience.\n\nOriginal advisory details:\n\n Andrew Osmond, Olli Pettay, Andrew Sutherland, Christian Holler, David\n Major, Andrew McCreight, Cameron McCormack, Bob Clary and Randell Jesup\n discovered multiple memory safety issues in Firefox. If a user were\n tricked in to opening a specially crafted website, an attacker could\n potentially exploit these to cause a denial of service via application\n crash, or execute arbitrary code with the privileges of the user invoking\n Firefox. (CVE-2015-4500, CVE-2015-4501)\n \n André Bargull discovered that when a web page creates a scripted proxy\n for the window with a handler defined a certain way, a reference to the\n inner window will be passed, rather than that of the outer window.\n (CVE-2015-4502)\n \n Felix Gröbert discovered an out-of-bounds read in the QCMS color\n management library in some circumstances. If a user were tricked in to\n opening a specially crafted website, an attacker could potentially exploit\n this to cause a denial of service via application crash, or obtain\n sensitive information. (CVE-2015-4504)\n \n Khalil Zhani discovered a buffer overflow when parsing VP9 content in some\n circumstances. If a user were tricked in to opening a specially crafted\n website, an attacker could potentially exploit this to cause a denial of\n service via application crash, or execute arbitrary code with the\n privileges of the user invoking Firefox. (CVE-2015-4506)\n \n Spandan Veggalam discovered a crash while using the debugger API in some\n circumstances. If a user were tricked in to opening a specially crafted\n website whilst using the debugger, an attacker could potentially exploit\n this to execute arbitrary code with the privileges of the user invoking\n Firefox. (CVE-2015-4507)\n \n Juho Nurminen discovered that the URL bar could display the wrong URL in\n reader mode in some circumstances. If a user were tricked in to opening a\n specially crafted website, an attacker could potentially exploit this to\n conduct URL spoofing attacks. (CVE-2015-4508)\n \n A use-after-free was discovered when manipulating HTML media content in\n some circumstances. If a user were tricked in to opening a specially\n crafted website, an attacker could potentially exploit this to cause a\n denial of service via application crash, or execute arbitrary code with\n the privileges of the user invoking Firefox. (CVE-2015-4509)\n \n Looben Yang discovered a use-after-free when using a shared worker with\n IndexedDB in some circumstances. If a user were tricked in to opening a\n specially crafted website, an attacker could potentially exploit this to\n cause a denial of service via application crash, or execute arbitrary code\n with the privileges of the user invoking Firefox. (CVE-2015-4510)\n \n Francisco Alonso discovered an out-of-bounds read during 2D canvas\n rendering in some circumstances. If a user were tricked in to opening a\n specially crafted website, an attacker could potentially exploit this to\n obtain sensitive information. (CVE-2015-4512)\n \n Jeff Walden discovered that changes could be made to immutable properties\n in some circumstances. If a user were tricked in to opening a specially\n crafted website, an attacker could potentially exploit this to execute\n arbitrary script in a privileged scope. (CVE-2015-4516)\n \n Ronald Crane reported multiple vulnerabilities. If a user were tricked in\n to opening a specially crafted website, an attacker could potentially\n exploit these to cause a denial of service via application crash, or\n execute arbitrary code with the privileges of the user invoking Firefox.\n (CVE-2015-4517, CVE-2015-4521, CVE-2015-4522, CVE-2015-7174,\n CVE-2015-7175, CVE-2015-7176, CVE-2015-7177, CVE-2015-7180)\n \n Mario Gomes discovered that dragging and dropping an image after a\n redirect exposes the redirected URL to scripts. An attacker could\n potentially exploit this to obtain sensitive information. (CVE-2015-4519)\n \n Ehsan Akhgari discovered 2 issues with CORS preflight requests. An\n attacker could potentially exploit these to bypass CORS restrictions.\n (CVE-2015-4520)\n","status":"published","published":"2015-10-05T12:36:50Z","modified":"2026-04-22T09:17:01.702874Z","updated_at":"2026-11-02T16:58:09.227524Z"}]}}