{"id":"USN-3076-1","summary":"firefox vulnerabilities","details":"Atte Kettunen discovered an out-of-bounds read when handling certain\nContent Security Policy (CSP) directives in some circumstances. If a user\nwere tricked in to opening a specially crafted website, an attacker could\npotentially exploit this to cause a denial of service via application\ncrash. (CVE-2016-2827)\n\nChristoph Diehl, Christian Holler, Gary Kwong, Nathan Froyd, Honza Bambas,\nSeth Fowler, Michael Smith, Andrew McCreight, Dan Minor, Byron Campen, Jon\nCoppeard, Steve Fink, Tyson Smith, and Carsten Book discovered multiple\nmemory safety issues in Firefox. If a user were tricked in to opening a\nspecially crafted website, an attacker could potentially exploit these to\ncause a denial of service via application crash, or execute arbitrary\ncode. (CVE-2016-5256, CVE-2016-5257)\n\nAtte Kettunen discovered a heap buffer overflow during text conversion\nwith some unicode characters. If a user were tricked in to opening a\nspecially crafted website, an attacker could potentially exploit this to\ncause a denial of service via application crash, or execute arbitrary\ncode. (CVE-2016-5270)\n\nAbhishek Arya discovered an out of bounds read during the processing of\ntext runs in some circumstances. If a user were tricked in to opening a\nspecially crafted website, an attacker could potentially exploit this to\ncause a denial of service via application crash. (CVE-2016-5271)\n\nAbhishek Arya discovered a bad cast when processing layout with input\nelements in some circumstances. If a user were tricked in to opening a\nspecially crafted website, an attacker could potentially exploit this to\ncause a denial of service via application crash, or execute arbitrary\ncode. (CVE-2016-5272)\n\nA crash was discovered in accessibility. If a user were tricked in to\nopening a specially crafted website, an attacker could potentially\nexploit this to execute arbitrary code. (CVE-2016-5273)\n\nA use-after-free was discovered in web animations during restyling. If a\nuser were tricked in to opening a specially crafted website, an attacker\ncould potentially exploit this to cause a denial of service via\napplication crash, or execute arbitrary code. (CVE-2016-5274)\n\nA buffer overflow was discovered when working with empty filters during\ncanvas rendering. If a user were tricked in to opening a specially crafted\nwebsite, an attacker could potentially exploit this to cause a denial of\nservice via application crash, or execute arbitrary code. (CVE-2016-5275)\n\nA use-after-free was discovered in accessibility. If a user were tricked\nin to opening a specially crafted website, an attacker could potentially\nexploit this to cause a denial of service via application crash, or\nexecute arbitrary code. (CVE-2016-5276)\n\nA use-after-free was discovered in web animations when destroying a\ntimeline. If a user were tricked in to opening a specially crafted\nwebsite, an attacker could potentially exploit this to cause a denial of\nservice via application crash, or execute arbitrary code. (CVE-2016-5277)\n\nA buffer overflow was discovered when encoding image frames to images in\nsome circumstances. If a user were tricked in to opening a specially\ncrafted website, an attacker could potentially exploit this to cause a\ndenial of service via application crash, or execute arbitrary code.\n(CVE-2016-5278)\n\nRafael Gieschke discovered that the full path of files is available to web\npages after a drag and drop operation. An attacker could potentially\nexploit this to obtain sensitive information. (CVE-2016-5279)\n\nMei Wang discovered a use-after-free when changing text direction. If a\nuser were tricked in to opening a specially crafted website, an attacker\ncould potentially exploit this to cause a denial of service via\napplication crash, or execute arbitrary code. (CVE-2016-5280)\n\nBrian Carpenter discovered a use-after-free when manipulating SVG content\nin some circumstances. If a user were tricked in to opening a specially\ncrafted website, an attacker could potentially exploit this to cause a\ndenial of service via application crash, or execute arbitrary code.\n(CVE-2016-5281)\n\nRichard Newman discovered that favicons can be loaded through\nprotocols not in the allowlist, such as jar:. (CVE-2016-5282)\n\nGavin Sharp discovered a timing attack vulnerability involving document\nresizes and link colours. If a user were tricked in to opening a specially\ncrafted website, an attacker could potentially exploit this to obtain\nsensitive information. (CVE-2016-5283)\n\nAn issue was discovered with the preloaded Public Key Pinning (HPKP). If\na machine-in-the-middle (MITM) attacker was able to obtain a fraudulent\ncertificate for a Mozilla site, they could exploit this by providing\nmalicious addon updates. (CVE-2016-5284)\n","modified":"2026-02-10T04:41:02Z","published":"2016-09-22T16:35:26Z","related":["UBUNTU-CVE-2016-2827","UBUNTU-CVE-2016-5256","UBUNTU-CVE-2016-5257","UBUNTU-CVE-2016-5270","UBUNTU-CVE-2016-5271","UBUNTU-CVE-2016-5272","UBUNTU-CVE-2016-5273","UBUNTU-CVE-2016-5274","UBUNTU-CVE-2016-5275","UBUNTU-CVE-2016-5276","UBUNTU-CVE-2016-5277","UBUNTU-CVE-2016-5278","UBUNTU-CVE-2016-5279","UBUNTU-CVE-2016-5280","UBUNTU-CVE-2016-5281","UBUNTU-CVE-2016-5282","UBUNTU-CVE-2016-5283","UBUNTU-CVE-2016-5284"],"upstream":["CVE-2016-2827","CVE-2016-5256","CVE-2016-5257","CVE-2016-5270","CVE-2016-5271","CVE-2016-5272","CVE-2016-5273","CVE-2016-5274","CVE-2016-5275","CVE-2016-5276","CVE-2016-5277","CVE-2016-5278","CVE-2016-5279","CVE-2016-5280","CVE-2016-5281","CVE-2016-5282","CVE-2016-5283","CVE-2016-5284","UBUNTU-CVE-2016-2827","UBUNTU-CVE-2016-5256","UBUNTU-CVE-2016-5257","UBUNTU-CVE-2016-5270","UBUNTU-CVE-2016-5271","UBUNTU-CVE-2016-5272","UBUNTU-CVE-2016-5273","UBUNTU-CVE-2016-5274","UBUNTU-CVE-2016-5275","UBUNTU-CVE-2016-5276","UBUNTU-CVE-2016-5277","UBUNTU-CVE-2016-5278","UBUNTU-CVE-2016-5279","UBUNTU-CVE-2016-5280","UBUNTU-CVE-2016-5281","UBUNTU-CVE-2016-5282","UBUNTU-CVE-2016-5283","UBUNTU-CVE-2016-5284"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3076-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-2827"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5256"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5257"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5270"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5271"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5272"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5273"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5274"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5275"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5276"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5277"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5278"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5279"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5280"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5281"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5282"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5283"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-5284"}],"affected":[{"package":{"name":"firefox","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/firefox@49.0+build4-0ubuntu0.14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"49.0+build4-0ubuntu0.14.04.1"}]}],"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","41.0.1+build2-0ubuntu0.14.04.1","41.0.2+build2-0ubuntu0.14.04.1","42.0+build2-0ubuntu0.14.04.1","43.0+build1-0ubuntu0.14.04.1","43.0.4+build3-0ubuntu0.14.04.1","44.0+build3-0ubuntu0.14.04.1","44.0.1+build2-0ubuntu0.14.04.1","44.0.2+build1-0ubuntu0.14.04.1","45.0+build2-0ubuntu0.14.04.1","45.0.1+build1-0ubuntu0.14.04.2","45.0.2+build1-0ubuntu0.14.04.1","46.0+build5-0ubuntu0.14.04.2","46.0.1+build1-0ubuntu0.14.04.3","47.0+build3-0ubuntu0.14.04.1","48.0+build2-0ubuntu0.14.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"49.0+build4-0ubuntu0.14.04.1","binary_name":"firefox"},{"binary_version":"49.0+build4-0ubuntu0.14.04.1","binary_name":"firefox-dev"},{"binary_version":"49.0+build4-0ubuntu0.14.04.1","binary_name":"firefox-globalmenu"},{"binary_version":"49.0+build4-0ubuntu0.14.04.1","binary_name":"firefox-mozsymbols"},{"binary_version":"49.0+build4-0ubuntu0.14.04.1","binary_name":"firefox-testsuite"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:14.04:LTS","cves":[{"id":"CVE-2016-2827","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2016-5256","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5257","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5270","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5271","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2016-5272","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5273","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5274","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5275","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5276","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5277","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5278","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5279","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5280","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5281","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5282","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5283","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5284","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3076-1.json"}},{"package":{"name":"firefox","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/firefox@49.0+build4-0ubuntu0.16.04.1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"49.0+build4-0ubuntu0.16.04.1"}]}],"versions":["41.0.2+build2-0ubuntu1","42.0+build2-0ubuntu1","44.0+build3-0ubuntu2","44.0.1+build1-0ubuntu1","44.0.2+build1-0ubuntu1","45.0+build2-0ubuntu1","45.0.1+build1-0ubuntu1","45.0.2+build1-0ubuntu1","46.0+build5-0ubuntu0.16.04.2","46.0.1+build1-0ubuntu0.16.04.2","47.0+build3-0ubuntu0.16.04.1","48.0+build2-0ubuntu0.16.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"49.0+build4-0ubuntu0.16.04.1","binary_name":"firefox"},{"binary_version":"49.0+build4-0ubuntu0.16.04.1","binary_name":"firefox-dev"},{"binary_version":"49.0+build4-0ubuntu0.16.04.1","binary_name":"firefox-globalmenu"},{"binary_version":"49.0+build4-0ubuntu0.16.04.1","binary_name":"firefox-mozsymbols"},{"binary_version":"49.0+build4-0ubuntu0.16.04.1","binary_name":"firefox-testsuite"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:16.04:LTS","cves":[{"id":"CVE-2016-2827","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2016-5256","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5257","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5270","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5271","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2016-5272","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5273","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5274","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5275","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5276","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5277","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5278","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5279","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5280","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5281","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5282","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5283","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2016-5284","severity":[{"score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3076-1.json"}}],"schema_version":"1.7.3"}