Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, bypass security restrictions, spoof the browser UI, confuse the user, conduct phishing attacks, or execute arbitrary code. (CVE-2021-38503, CVE-2021-38504, CVE-2021-38506, CVE-2021-38507, CVE-2021-38508, CVE-2021-38509)
It was discovered that the 'Copy Image Link' context menu action would copy the final image URL after redirects. If a user were tricked into copying and pasting a link for an embedded image that triggered authentication flows back to the page, an attacker could potentially exploit this to steal authentication tokens.
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{ "cves": [ { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38503" }, { "severity": [ { "score": "CVSS:3.1/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-2021-38504" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38506" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38507" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38508" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38509" } ], "ecosystem": "Ubuntu:18.04:LTS" }
{ "binaries": [ { "binary_version": "94.0+build3-0ubuntu0.20.04.1", "binary_name": "firefox" }, { "binary_version": "94.0+build3-0ubuntu0.20.04.1", "binary_name": "firefox-dev" }, { "binary_version": "94.0+build3-0ubuntu0.20.04.1", "binary_name": "firefox-geckodriver" }, { "binary_version": "94.0+build3-0ubuntu0.20.04.1", "binary_name": "firefox-mozsymbols" } ], "availability": "No subscription required" }
{ "cves": [ { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38503" }, { "severity": [ { "score": "CVSS:3.1/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-2021-38504" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38506" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38507" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38508" }, { "severity": [ { "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N", "type": "CVSS_V3" }, { "score": "medium", "type": "Ubuntu" } ], "id": "CVE-2021-38509" } ], "ecosystem": "Ubuntu:20.04:LTS" }