Уязвимость реализации протокола TLS 1.2 браузеров Mozilla Firefox, Firefox ESR и почтового клиента Thunderbird, позволяющая нарушителю вызвать отказ в обслуживании

Уязвимость интерфейса Resource Timing API браузеров Firefox, Firefox ESR и почтового клиента Thunderbird, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Уязвимость реализации объекта «PressShell» браузеров Firefox, Firefox ESR и почтового клиента Thunderbird, позволяющая нарушителю вызвать отказ в обслуживании

Уязвимость браузеров Firefox, Firefox ESR и почтового клиента Thunderbird, связанная c выходом операции за границы буфера в памяти, позволяющая нарушителю выполнить произвольный код

Уязвимость реализации языка разметки SVG браузера Mozilla Firefox, позволяющая нарушителю оказать воздействие на целостность данных

Уязвимость реализации процесса Pingsender браузера Mozilla Firefox, позволяющая нарушителю повысить свои привилегии

Уязвимость браузера Mozilla Firefox, связанная с непринятием мер по защите структуры веб-страницы, позволяющая нарушителю проводить межсайтовые сценарные атаки

Уязвимость браузера Mozilla Firefox, связанная с недостатком механизма проверки вводимых данных в адресной строке, позволяющая нарушителю проводить спуфинг-атаки

Уязвимость реализации механизма CSP (Content Security Policy браузера Mozilla Firefox, позволяющая нарушителю проводить межсайтовые сценарные атаки

Уязвимость браузера Mozilla Firefox, связанная с недостатком механизма проверки вводимых данных, позволяющая нарушителю проводить спуфинг-атаки

Уязвимость браузера Mozilla Firefox, связанная с выходом операции за допустимые границы буфера данных, позволяющая нарушителю выполнить произвольный код

Уязвимость механизма _exposedProps_ браузера Mozilla Firefox, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Уязвимость реализации метода преобразования последовательностей Punycode браузера Mozilla Firefox, позволяющая нарушителю проводить спуфинг-атаки

Уязвимость браузера Mozilla Firefox, связанная с игнорированием ведущих символов javascript в адресной строке, позволяющая нарушителю проводить межсайтовые сценарные атаки

Уязвимость браузера Mozilla Firefox, связанная с недостатками используемых мер по защите структуры веб-страницы, позволяющая нарушителю проводить межсайтовые сценарные атаки

Уязвимость реализации политики Referrer Policy браузера Mozilla Firefox, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Memory safety bugs were reported in Firefox 56 and Firefox ESR 52.4. 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 < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

Memory safety bugs were reported in Firefox 56. 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 < 57.

A use-after-free vulnerability can occur when flushing and resizing layout because the "PressShell" object has been freed while still in use. This results in a potentially exploitable crash during these operations. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

The Resource Timing API incorrectly revealed navigations in cross-origin iframes. This is a same-origin policy violation and could allow for data theft of URLs loaded by users. This vulnerability affects Firefox < 57, Firefox ESR < 52.5, and Thunderbird < 52.5.

A vulnerability where the security wrapper does not deny access to some exposed properties using the deprecated "_exposedProps_" mechanism on proxy objects. These properties should be explicitly unavailable to proxy objects. This vulnerability affects Firefox < 57.

The combined, single character, version of the letter 'i' with any of the potential accents in unicode, such as acute or grave, can be spoofed in the addressbar by the dotless version of 'i' followed by the same accent as a second character with most font sets. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.

Some Arabic and Indic vowel marker characters can be combined with Latin characters in a domain name to eclipse the non-Latin character with some font sets on the addressbar. The non-Latin character will not be visible to most viewers. This allows for domain spoofing attacks because these combined domain names do not display as punycode. This vulnerability affects Firefox < 57.

A "data:" URL loaded in a new tab did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when "data:" documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. This vulnerability affects Firefox < 57.

Mixed content blocking of insecure (HTTP) sub-resources in a secure (HTTPS) document was not correctly applied for resources that redirect from HTTPS to HTTP, allowing content that should be blocked, such as scripts, to be loaded on a page. This vulnerability affects Firefox < 57.

The "pingsender" executable used by the Firefox Health Report dynamically loads a system copy of libcurl, which an attacker could replace. This allows for privilege escalation as the replaced libcurl code will run with Firefox's privileges. Note: This attack requires an attacker have local system access and only affects OS X and Linux. Windows systems are not affected. This vulnerability affects Firefox < 57.

SVG loaded through "" tags can use "" tags within the SVG data to set cookies for that page. This vulnerability affects Firefox < 57.

Punycode format text will be displayed for entire qualified international domain names in some instances when a sub-domain triggers the punycode display instead of the primary domain being displayed in native script and the sub-domain only displaying as punycode. This could be used for limited spoofing attacks due to user confusion. This vulnerability affects Firefox < 57.

Control characters prepended before "javascript:" URLs pasted in the addressbar can cause the leading characters to be ignored and the pasted JavaScript to be executed instead of being blocked. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks where users are convinced to copy and paste text into the addressbar. This vulnerability affects Firefox < 57.

JavaScript can be injected into an exported bookmarks file by placing JavaScript code into user-supplied tags in saved bookmarks. If the resulting exported HTML file is later opened in a browser this JavaScript will be executed. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks if users were convinced to add malicious tags to bookmarks, export them, and then open the resulting file. This vulnerability affects Firefox < 57.

If a document's Referrer Policy attribute is set to "no-referrer" sometimes two network requests are made for "" elements instead of one. One of these requests includes the referrer instead of respecting the set policy to not include a referrer on requests. This vulnerability affects Firefox < 57.

When Private Browsing mode is used, it is possible for a web worker to write persistent data to IndexedDB and fingerprint a user uniquely. IndexedDB should not be available in Private Browsing mode and this stored data will persist across multiple private browsing mode sessions because it is not cleared when exiting. This vulnerability affects Firefox ESR < 52.5.2 and Firefox < 57.0.1.

A combination of an external SVG image referenced on a page and the coloring of anchor links stored within this image can be used to determine which pages a user has in their history. This can allow a malicious website to query user history. Note: This issue only affects Firefox 57. Earlier releases are not affected. This vulnerability affects Firefox < 57.0.1.