Open Source Vulnerabilities

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Permission prompts for opening external schemes were only shown for <code>ContentPrincipals</code> resulting in extensions being able to open them without user interaction via <code>ExpandedPrincip...

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Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in <code>ScriptLoadContext</code>

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Members of the <code>DEVMODEW</code> struct set by the printer device driver weren't being validated and could have resulted in invalid values which in turn would cause the browser to attempt out o...

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invalid downcast from <code>nsTextNode</code> to <code>SVGElement</code> could have lead to undefined behavior

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Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free after unwrapping the proxy

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attacker could construct a PKCS 12 cert bundle in such a way that could allow for arbitrary memory writes via PKCS 12 Safe Bag attributes being mishandled

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background script invoking <code>requestFullscreen</code> and then blocking the main thread could force the browser into fullscreen mode indefinitely, resulting in potential user confusion or spoof...

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<code>Content-Security-Policy-Report-Only</code> header could allow an attacker to leak a child iframe's unredacted URI when interaction with that iframe triggers a redirect

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Memory safety bugs present in Firefox 110 and Firefox ESR 102

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When downloading files through the Save As dialog on Windows with suggested filenames containing environment variable names, Windows would have resolved those in the context of the current user

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When accessing throttled streams, the count of available bytes needed to be checked in the calling function to be within bounds

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While implementing AudioWorklets, some code may have casted one type to another, invalid, dynamic type

Crass: Large numeric exponents cause CPU and memory denial of service

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Dragging a URL from a cross-origin iframe that was removed during the drag could have led to user confusion and website spoofing attacks

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Sometimes, when invalidating JIT code while following an iterator, the newly generated code could be overwritten incorrectly

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Memory safety bugs present in Firefox 111 and Firefox ESR 102

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wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization result

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Unexpected data returned from the Safe Browsing API could have led to memory corruption and a potentially exploitable crash

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Similar to CVE-2023-28163, this time when choosing 'Save Link As', suggested filenames containing environment variable names would have resolved those in the context of the current user

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newline in a filename could have been used to bypass the file extension security mechanisms that replace malicious file extensions such as

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Firefox did not properly handle downloads of files ending in <code>

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When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character

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attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled memory, resulting in an assertion, memory corruption, or a potentially exploitable crash

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Following a Garbage Collector compaction, weak maps may have been accessed before they were correctly traced

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There exists a use after free/double free in libwebp

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website could have obscured the fullscreen notification by using a combination of <code>window

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local attacker can trick the Mozilla Maintenance Service into applying an unsigned update file by pointing the service at an update file on a malicious SMB server

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attacker could have caused an out of bounds memory access using WebGL APIs, leading to memory corruption and a potentially exploitable crash

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Mozilla developers and community members Gabriele Svelto, Andrew Osmond, Emily McDonough, Sebastian Hengst, Andrew McCreight and the Mozilla Fuzzing Team reported memory safety bugs present in Fire...

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Protocol handlers `ms-cxh` and `ms-cxh-full` could have been leveraged to trigger a denial of service

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When reading a file, an uninitialized value could have been used as read limit

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attacker could have positioned a `datalist` element to obscure the address bar

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type checking bug would have led to invalid code being compiled

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missing delay in popup notifications could have made it possible for an attacker to trick a user into granting permissions

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out-of-bound read could have led to a crash in the RLBox Expat driver

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In multiple cases browser prompts could have been obscured by popups controlled by content

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Memory safety bugs present in Firefox 113, Firefox ESR 102

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error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays

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Memory safety bugs present in Firefox 114

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Memory safety bugs present in Firefox 114, Firefox ESR 102

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website could prevent a user from exiting full-screen mode via alert and prompt calls

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use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained

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When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code

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website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL

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Uploading files which contain symlinks may have allowed an attacker to trick a user into submitting sensitive data to a malicious website

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use of RTL Arabic characters in the address bar may have allowed for URL spoofing

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website could have obscured the fullscreen notification by using an option element by introducing lag via an expensive computational function

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Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have allowed an attacker to trick end-users into creating a shortcut to local system files

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Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free

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attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS