Firefox Security Vulnerabilities

CVE-2022-0843

Mozilla developers Kershaw Chang, Ryan VanderMeulen, and Randell Jesup reported memory safety bugs present in Firefox 97. 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 ...

CVE-2022-1097

<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird &lt; 91.8, Firefox &lt; 99, and Firefox ESR &lt; 91.8.

CVE-2022-1529

An attacker could have sent a message to the parent process where the contents were used to double-index into a JavaScript object, leading to prototype pollution and ultimately attacker-controlled JavaScript executing in the privileged parent process. This vulnerability affects Firefox ESR &lt; 91....

CVE-2022-1802

If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context. This vulnerability affects Firefox ESR &lt; 91.9.1, Firefox &lt; 100.0.2, Firefox for Android &...

CVE-2022-1887

The search term could have been specified externally to trigger SQL injection. This vulnerability affects Firefox for iOS &lt; 101.

CVE-2022-2200

If an object prototype was corrupted by an attacker, they would have been able to set undesired attributes on a JavaScript object, leading to privileged code execution. This vulnerability affects Firefox &lt; 102, Firefox ESR &lt; 91.11, Thunderbird &lt; 102, and Thunderbird &lt; 91.11.

CVE-2022-22736

If Firefox was installed to a world-writable directory, a local privilege escalation could occur when Firefox searched the current directory for system libraries. However the install directory is not world-writable by default.<br>This bug only affects Firefox for Windows in a non-default installati...

CVE-2022-22737

Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22738

Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow causing a potentially exploitable crash. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22739

Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22740

Certain network request objects were freed too early when releasing a network request handle. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22741

When resizing a popup while requesting fullscreen access, the popup would have become unable to leave fullscreen mode. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22742

When inserting text while in edit mode, some characters might have lead to out-of-bounds memory access causing a potentially exploitable crash. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22743

When navigating from inside an iframe while requesting fullscreen access, an attacker-controlled tab could have made the browser unable to leave fullscreen mode. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22744

The constructed curl command from the "Copy as curl" feature in DevTools was not properly escaped for PowerShell. This could have lead to command injection if pasted into a Powershell prompt.<br>This bug only affects Thunderbird for Windows. Other operating systems are unaffected. . This vulnerabil...

CVE-2022-22745

Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22746

A race condition could have allowed bypassing the fullscreen notification which could have lead to a fullscreen window spoof being unnoticed.<br>This bug only affects Firefox for Windows. Other operating systems are unaffected. . This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, an...

CVE-2022-22747

After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22748

Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol. This vulnerability affects Firefox ESR &lt; 91.5, Firefox &lt; 96, and Thunderbird &lt; 91.5.

CVE-2022-22749

When scanning QR codes, Firefox for Android would have allowed navigation to some URLs that do not point to web content.<br>This bug only affects Firefox for Android. Other operating systems are unaffected. . This vulnerability affects Firefox &lt; 96.

CVE-2022-22750

By generally accepting and passing resource handles across processes, a compromised content process might have confused higher privileged processes to interact with handles that the unprivileged process should not have access to.<br>This bug only affects Firefox for Windows and MacOS. Other operati...

CVE-2022-22751

Mozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson Smith, Simon Giesecke, and Steve Fink reported memory safety bugs present in Firefox 95 and Firefox ESR 91.4. Some of these bugs showed evidence of memory corruption and we presume that with e...

CVE-2022-22752

Mozilla developers Christian Holler and Jason Kratzer reported memory safety bugs present in Firefox 95. 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 &...

CVE-2022-22753

A Time-of-Check Time-of-Use bug existed in the Maintenance (Updater) Service that could be abused to grant Users write access to an arbitrary directory. This could have been used to escalate to SYSTEM access.<br>This bug only affects Firefox on Windows. Other operating systems are unaffected. . Thi...

CVE-2022-22754

If a user installed an extension of a particular type, the extension could have auto-updated itself and while doing so, bypass the prompt which grants the new version the new requested permissions. This vulnerability affects Firefox &lt; 97, Thunderbird &lt; 91.6, and Firefox ESR &lt; 91.6.

CVE-2022-22755

By using XSL Transforms, a malicious webserver could have served a user an XSL document that would continue to execute JavaScript (within the bounds of the same-origin policy) even after the tab was closed. This vulnerability affects Firefox &lt; 97.

CVE-2022-22756

If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script which would have run arbitrary code after the user clicked on it. This vulnerability affects Firefox &lt; 97, Thunderbird &lt; 91.6, and Firefox...

CVE-2022-22757

Remote Agent, used in WebDriver, did not validate the Host or Origin headers. This could have allowed websites to connect back locally to the user's browser to control it. <br>This bug only affected Firefox when WebDriver was enabled, which is not the default configuration. . This vulnerability aff...

CVE-2022-22758

When clicking on a tel: link, USSD codes, specified after a <code>*</code> character, would be included in the phone number. On certain phones, or on certain carriers, if the number was dialed this could perform actions on a user's account, similar to a cross-site request forgery attack.<br>This bu...

CVE-2022-22759

If a document created a sandboxed iframe without <code>allow-scripts</code>, and subsequently appended an element to the iframe's document that e.g. had a JavaScript event handler - the event handler would have run despite the iframe's sandbox. This vulnerability affects Firefox &lt; 97, Thunderbir...

CVE-2022-22760

When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox &lt; 97, Thunderbird &lt; 91....

CVE-2022-22761

Web-accessible extension pages (pages with a moz-extension:// scheme) were not correctly enforcing the frame-ancestors directive when it was used in the Web Extension's Content Security Policy. This vulnerability affects Firefox &lt; 97, Thunderbird &lt; 91.6, and Firefox ESR &lt; 91.6.

CVE-2022-22762

Under certain circumstances, a JavaScript alert (or prompt) could have been shown while another website was displayed underneath it. This could have been abused to trick the user. <br>This bug only affects Firefox for Android. Other operating systems are unaffected. . This vulnerability affects Fir...

CVE-2022-22763

When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox &lt; 96, Thunderbird &lt; 91.6, and Firefox ESR &lt; 91.6.

CVE-2022-22764

Mozilla developers Paul Adenot and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 96 and Firefox ESR 91.5. 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 vuln...

CVE-2022-2505

Mozilla developers and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 102. 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 ESR &l...

CVE-2022-26381

An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash. This vulnerability affects Firefox &lt; 98, Firefox ESR &lt; 91.7, and Thunderbird &lt; 91.7.

CVE-2022-26382

While the text displayed in Autofill tooltips cannot be directly read by JavaScript, the text was rendered using page fonts. Side-channel attacks on the text by using specially crafted fonts could have lead to this text being inferred by the webpage. This vulnerability affects Firefox &lt; 98.

CVE-2022-26383

When resizing a popup after requesting fullscreen access, the popup would not display the fullscreen notification. This vulnerability affects Firefox &lt; 98, Firefox ESR &lt; 91.7, and Thunderbird &lt; 91.7.

CVE-2022-26384

If an attacker could control the contents of an iframe sandboxed with <code>allow-popups</code> but not <code>allow-scripts</code>, they were able to craft a link that, when clicked, would lead to JavaScript execution in violation of the sandbox. This vulnerability affects Firefox &lt; 98, Firefox ...

CVE-2022-26385

In unusual circumstances, an individual thread may outlive the thread's manager during shutdown. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox &lt; 98.

CVE-2022-26387

When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox &lt; 98, Firefox ESR &lt; 91.7, and Thunderbi...

CVE-2022-26485

Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox &lt; 97.0.2, Firefox ESR &lt; 91.6.1, Firefox for Android &lt; 97.3.0, Thunderbird &lt; 91.6.2, and Focus &...

CVE-2022-26486

An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox &lt; 97.0.2, Firefox ESR &lt; 91.6.1, Firefox for Android &lt; 97.3.0, Thunderbird &lt; 9...

CVE-2022-28281

If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird &lt; 91.8, Firefox &lt; ...

CVE-2022-28282

By using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript execution and then referencing the object through a freed pointer, leading to a potential exploitable crash. This vulnerability affects Thunderbird &lt; 91.8, Fi...

CVE-2022-28283

The sourceMapURL feature in devtools was missing security checks that would have allowed a webpage to attempt to include local files or other files that should have been inaccessible. This vulnerability affects Firefox &lt; 99.

CVE-2022-28284

SVG's <code>&lt;use&gt;</code> element could have been used to load unexpected content that could have executed script in certain circumstances. While the specification seems to allow this, other browsers do not, and web developers relied on this property for script security so gecko's implementati...

CVE-2022-28285

When generating the assembly code for <code>MLoadTypedArrayElementHole</code>, an incorrect AliasSet was used. In conjunction with another vulnerability this could have been used for an out of bounds memory read. This vulnerability affects Thunderbird &lt; 91.8, Firefox &lt; 99, and Firefox ESR &lt...

CVE-2022-28286

Due to a layout change, iframe contents could have been rendered outside of its border. This could have led to user confusion or spoofing attacks. This vulnerability affects Thunderbird &lt; 91.8, Firefox &lt; 99, and Firefox ESR &lt; 91.8.