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CVSS: 10.0EPSS: 2%CPEs: 5EXPL: 0

12 Apr 2023 — When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. The Mozilla Foundation Security Advisory describes this flaw as: When handling the filename directive in the Content-Dis... • https://bugzilla.mozilla.org/show_bug.cgi?id=1784348 • CWE-159: Improper Handling of Invalid Use of Special Elements CWE-476: NULL Pointer Dereference •

CVSS: 10.0EPSS: 0%CPEs: 5EXPL: 0

12 Apr 2023 — Firefox did not properly handle downloads of files ending in .desktop, which can be interpreted to run attacker-controlled commands.
*This bug only affects Firefox for Linux on certain Distributions. Other operating systems are unaffected, and Mozilla is unable to enumerate all affected Linux Distributions.*. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10. The Mozilla Foundation Security Advisory d... • https://bugzilla.mozilla.org/show_bug.cgi?id=1810191 • CWE-116: Improper Encoding or Escaping of Output CWE-434: Unrestricted Upload of File with Dangerous Type •

CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 0

16 Mar 2023 — Memory safety bugs present in Firefox 110. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 111. 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, obtain sensitive information across domains, or execute arbitrary code. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1803109%2C1808832%2C1809542%2C1817336 • CWE-787: Out-of-bounds Write •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

16 Mar 2023 — When accessing throttled streams, the count of available bytes needed to be checked in the calling function to be within bounds. This may have lead future code to be incorrect and vulnerable. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue that when accessing throttled streams, the count of available bytes needs to be checked in the calling function to be within bounds. • https://bugzilla.mozilla.org/show_bug.cgi?id=1811627 • CWE-125: Out-of-bounds Read •

CVSS: 7.8EPSS: 0%CPEs: 1EXPL: 0

16 Mar 2023 — When following a redirect to a publicly accessible web extension file, the URL may have been translated to the actual local path, leaking potentially sensitive information. This vulnerability affects Firefox < 111. USN-5954-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. This update fixes the problem. • https://bugzilla.mozilla.org/show_bug.cgi?id=1802385 • CWE-425: Direct Request ('Forced Browsing') •

CVSS: 5.0EPSS: 0%CPEs: 1EXPL: 0

16 Mar 2023 — Under certain circumstances, a ServiceWorker's offline cache may have leaked to the file system when using private browsing mode. This vulnerability affects Firefox < 111. 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, obtain sensitive information across domains, or execute arbitrary code. Lukas Bernhard discovered that Firefox did not properly manage memory when i... • https://bugzilla.mozilla.org/show_bug.cgi?id=1814733 • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-668: Exposure of Resource to Wrong Sphere •

CVSS: 10.0EPSS: 0%CPEs: 1EXPL: 0

16 Mar 2023 — If temporary "one-time" permissions, such as the ability to use the Camera, were granted to a document loaded using a file: URL, that permission persisted in that tab for all other documents loaded from a file: URL. This is potentially dangerous if the local files came from different sources, such as in a download directory. This vulnerability affects Firefox < 111. USN-5954-1 fixed vulnerabilities in Firefox. The update introduced several minor regressions. • https://bugzilla.mozilla.org/show_bug.cgi?id=1811181 • CWE-281: Improper Preservation of Permissions •

CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0

16 Mar 2023 — Dragging a URL from a cross-origin iframe that was removed during the drag could have led to user confusion and website spoofing attacks. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. A flaw was found in Mozilla. The Mozilla Foundation Security Advisory described the issue of dragging a URL from a cross-origin iframe that was removed during the drag could have led to user confusion and website spoofing attacks. USN-5954-1 fixed vulnerabilities in Firefox. • https://bugzilla.mozilla.org/show_bug.cgi?id=1809122 • CWE-346: Origin Validation Error CWE-829: Inclusion of Functionality from Untrusted Control Sphere •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Mar 2023 — While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. The Mozilla Foundation Security Advisory describes this flaw as: While implementing AudioWorklets, some code may have cast one type to another, invalid, dynamic type. This could have led to a potentially exploitable crash. • https://bugzilla.mozilla.org/show_bug.cgi?id=1811327 • CWE-704: Incorrect Type Conversion or Cast CWE-843: Access of Resource Using Incompatible Type ('Type Confusion') •

CVSS: 10.0EPSS: 0%CPEs: 3EXPL: 0

16 Mar 2023 — Memory safety bugs present in Firefox 110 and Firefox ESR 102.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. A flaw was found in Mozilla. The Mozilla Foundation Security Advisory described the issue in which Mozilla developers Timothy Nikkel, Andrew McCreight, and the Mozilla Fuzzing Team reported memory safe... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1808352%2C1811637%2C1815904%2C1817442%2C1818674 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') CWE-787: Out-of-bounds Write •