Privilege escalation in the Remote Settings Client component

Privilege escalation in the Remote Settings Client component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.

Internal URLs are protected by a secret UUID key, which could have been leaked to web page through the Referrer header. This vulnerability affects Firefox for iOS < 102.

When opening a page in reader mode, the redirect URL could have caused attacker-controlled script to execute in a reflected Cross-Site Scripting (XSS) attack. This vulnerability affects Firefox for iOS < 119.

When a user scans a QR Code with the QR Code Scanner feature, the user is not prompted before being navigated to the page specified in the code. This may surprise the user and potentially direct them to unwanted content. This vulnerability affects Firefox for iOS < 129.

In certain scenarios a malicious website could attempt to display a fake location URL bar which could mislead users as to the actual website address This vulnerability affects Firefox for iOS < 127.

A rogue webpage could override the injected WKUserScript used by the download feature, this exploit could result in the user downloading an unintended file. This vulnerability affects Firefox for iOS < 28.

An attacker could have accessed internal pages or data by ex-filtrating a security key from ReaderMode via the `referrerpolicy` attribute. This vulnerability affects Firefox for iOS < 120.

An attacker could have performed HTML template injection via Reader Mode and exfiltrated user information. This vulnerability affects Firefox for iOS < 120.

Long pressing on a download link could potentially allow Javascript commands to be executed within the browser This vulnerability affects Firefox for iOS < 129.

When browsing private tabs, some data related to location history or webpage thumbnails could be persisted incorrectly within the sandboxed app bundle after app termination This vulnerability affects Firefox for iOS < 127.

For native-to-JS bridging, the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That token was being used for JS-to-native also, but it isn't needed in this case, and its usage was also leaking this token. This vulnerability affects Firefox for iOS < 25.

Scanning a QR code that contained a javascript: URL would have resulted in the Javascript being executed.

Long pressing on a download link could potentially provide a means for cross-site scripting This vulnerability affects Firefox for iOS < 129.

A rogue webpage could override the injected WKUserScript used by the logins autofill, this exploit could result in leaking a password for the current domain. This vulnerability affects Firefox for iOS < 28.

The contextual menu for links could provide an opportunity for cross-site scripting attacks This vulnerability affects Firefox for iOS < 129.

IndexedDB should be cleared when leaving private browsing mode and it is not, the API for WKWebViewConfiguration was being used incorrectly and requires the private instance of this object be deleted when leaving private mode. This vulnerability affects Firefox for iOS < 27.

For native-to-JS bridging the app requires a unique token to be passed that ensures non-app code can't call the bridging functions. That token could leak when used for downloading files. This vulnerability affects Firefox for iOS < 26.

Mozilla: Memory safety bugs fixed in Firefox 112 and Firefox ESR 102.10

Memory safety bugs present in Firefox 111 and Firefox ESR 102.9. 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 < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

Mozilla: Content-Disposition filename truncation leads to Reflected File Download

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.

Mozilla: Files with malicious extensions could have been downloaded unsafely on Linux

Firefox did not properly handle downloads of files ending in <code>.desktop</code>, which can be interpreted to run attacker-controlled commands. <br>*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.