CVE-2020-6819 vulnerabilities and exploits

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If a template tag was used in a select tag, the parser could be confused and allow JavaScript parsing and execution when it should not be allowed. A site that relied on the browser behaving correctly could suffer a cross-site scripting vulnerability as a result. In general, this ...

Mozilla Firefox Mozilla Firefox Esr Mozilla Thunderbird

Mozilla developers and community members reported memory safety bugs present in Firefox 72 and Firefox ESR 68.4. 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. In genera...

Mozilla Firefox Mozilla Firefox Esr Mozilla Thunderbird Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10

When removing data about an origin whose tab was recently closed, a use-after-free could occur in the Quota manager, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6.

Mozilla Firefox Esr Mozilla Thunderbird Mozilla Firefox Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 16.04

By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firef...

Mozilla Firefox Esr Mozilla Thunderbird Mozilla Firefox Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 16.04

When a device was changed while a stream was about to be destroyed, the <code>stream-reinit</code> task may have been executed after the stream was destroyed, causing a use-after-free and a potentially exploitable crash. This vulnerability affects Thunderbird < 68....

Mozilla Firefox Esr Mozilla Thunderbird Mozilla Firefox Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 16.04

The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP method of a request, which can be controlled by the website. If a user used the 'Copy as Curl' feature and pasted the command into a terminal, it could have resulted in c...

Mozilla Firefox Mozilla Firefox Esr Mozilla Thunderbird Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10

The first time AirPods are connected to an iPhone, they become named after the user's name by default (e.g. Jane Doe's AirPods.) Websites with camera or microphone permission are able to enumerate device names, disclosing the user's name. To resolve this issue, Fir...

Mozilla Firefox Esr Mozilla Thunderbird Mozilla Firefox Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 16.04

Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.

Mozilla Firefox Mozilla Thunderbird Mozilla Firefox Esr Canonical Ubuntu Linux 16.04

5 Github repositories1 Article

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

Mozilla Firefox Mozilla Firefox Esr Mozilla Thunderbird

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