Mozilla Firefox vulnerabilities

CVE-2018-12388 [HIGH] CWE-119 CVE-2018-12388: Mozilla developers and community members reported memory safety bugs present in Firefox 62. Some of Mozilla developers and community members reported memory safety bugs present in Firefox 62. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 63.

CVE-2018-12406 [HIGH] CWE-119 CVE-2018-12406: Mozilla developers and community members reported memory safety bugs present in Firefox 63. Some of Mozilla developers and community members reported memory safety bugs present in Firefox 63. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 64.

CVE-2018-12401 [HIGH] CWE-20 CVE-2018-12401: Some special resource URIs will cause a non-exploitable crash if loaded with optional parameters fol Some special resource URIs will cause a non-exploitable crash if loaded with optional parameters following a '?' in the parsed string. This could lead to denial of service (DOS) attacks. This vulnerability affects Firefox < 63.

CVE-2018-12391 [HIGH] CWE-863 CVE-2018-12391: During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins i During HTTP Live Stream playback on Firefox for Android, audio data can be accessed across origins in violation of security policies. Because the problem is in the underlying Android service, this issue is addressed by treating all HLS streams as cross-origin and opaque to access. *Note: this issue only affects Firefox for Android. Desktop versions of

CVE-2018-12395 [HIGH] CVE-2018-12395: By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain re By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

CVE-2018-12389 [HIGH] CWE-119 CVE-2018-12389: Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. So Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3.

CVE-2018-12393 [HIGH] CWE-190 CVE-2018-12393: A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion A potential vulnerability was found in 32-bit builds where an integer overflow during the conversion of scripts to an internal UTF-16 representation could result in allocating a buffer too small for the conversion. This leads to a possible out-of-bounds write. *Note: 64-bit builds are not vulnerable to this issue.*. This vulnerability affects Firefox

CVE-2018-18496 [HIGH] CWE-1021 CVE-2018-18496: When the RSS Feed preview about:feeds page is framed within another page, it can be used in concert When the RSS Feed preview about:feeds page is framed within another page, it can be used in concert with scripted content for a clickjacking attack that confuses users into downloading and executing an executable file from a temporary directory. *Note: This issue only affects Windows operating systems. Other operating systems are not affected.*. This

CVE-2018-12397 [HIGH] CWE-200 CVE-2018-12397: A WebExtension can request access to local files without the warning prompt stating that the extensi A WebExtension can request access to local files without the warning prompt stating that the extension will "Access your data for all websites" being displayed to the user. This allows extensions to run content scripts in local pages without permission warnings when a local file is opened. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63

CVE-2018-12403 [MEDIUM] CVE-2018-12403: If a site is loaded over a HTTPS connection but loads a favicon resource over HTTP, the mixed conten If a site is loaded over a HTTPS connection but loads a favicon resource over HTTP, the mixed content warning is not displayed to users. This vulnerability affects Firefox < 63.

CVE-2018-12398 [MEDIUM] CVE-2018-12398: By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject By using the reflected URL in some special resource URIs, such as chrome:, it is possible to inject stylesheets and bypass Content Security Policy (CSP). This vulnerability affects Firefox < 63.

CVE-2018-18494 [MEDIUM] CWE-346 CVE-2018-18494: A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascr A same-origin policy violation allowing the theft of cross-origin URL entries when using the Javascript location property to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

CVE-2018-18499 [MEDIUM] CWE-346 CVE-2018-18499: A same-origin policy violation allowing the theft of cross-origin URL entries when using a meta http A same-origin policy violation allowing the theft of cross-origin URL entries when using a meta http-equiv="refresh" on a page to cause a redirection to another site using performance.getEntries(). This is a same-origin policy violation and could allow for data theft. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.

CVE-2018-18495 [MEDIUM] CWE-732 CVE-2018-18495: WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of WebExtension content scripts can be loaded into about: pages in some circumstances, in violation of the permissions granted to extensions. This could allow an extension to interfere with the loading and usage of these pages and use capabilities that were intended to be restricted from extensions. This vulnerability affects Firefox < 64.

CVE-2018-12399 [MEDIUM] CWE-287 CVE-2018-12399: When a new protocol handler is registered, the API accepts a title argument which can be used to mis When a new protocol handler is registered, the API accepts a title argument which can be used to mislead users about which domain is registering the new protocol. This may result in the user approving a protocol handler that they otherwise would not have. This vulnerability affects Firefox < 63.

CVE-2018-12402 [MEDIUM] CWE-346 CVE-2018-12402: The internal WebBrowserPersist code does not use correct origin context for a resource being saved. The internal WebBrowserPersist code does not use correct origin context for a resource being saved. This manifests when sub-resources are loaded as part of "Save Page As..." functionality. For example, a malicious page could recover a visitor's Windows username and NTLM hash by including resources otherwise unreachable to the malicious page, if they

CVE-2018-12396 [MEDIUM] CWE-732 CVE-2018-12396: A vulnerability where a WebExtension can run content scripts in disallowed contexts following naviga A vulnerability where a WebExtension can run content scripts in disallowed contexts following navigation or other events. This allows for potential privilege escalation by the WebExtension on sites where content scripts should not be run. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

CVE-2018-18497 [MEDIUM] CVE-2018-18497: Limitations on the URIs allowed to WebExtensions by the browser.windows.create API can be bypassed w Limitations on the URIs allowed to WebExtensions by the browser.windows.create API can be bypassed when a pipe in the URL field is used within the extension to load multiple pages as a single argument. This could allow a malicious WebExtension to open privileged about: or file: locations. This vulnerability affects Firefox < 64.

CVE-2018-12400 [MEDIUM] CWE-200 CVE-2018-12400: In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as th In private browsing mode on Firefox for Android, favicons are cached in the cache/icons folder as they are in non-private mode. This allows information leakage of sites visited during private browsing sessions. *Note: this issue only affects Firefox for Android. Desktop versions of Firefox are unaffected.*. This vulnerability affects Firefox < 63.

CVE-2018-18502 [CRITICAL] CWE-119 CVE-2018-18502: Mozilla developers and community members reported memory safety bugs present in Firefox 64. Some of Mozilla developers and community members reported memory safety bugs present in Firefox 64. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 65.