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CVE-2019-17026 vulnerabilities and exploits
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8.8
CVSSv3
CVE-2020-6805
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
8.8
CVSSv3
CVE-2020-6806
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
8.8
CVSSv3
CVE-2020-6807
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
8.8
CVSSv3
CVE-2020-6811
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
9.8
CVSSv3
CVE-2020-6814
Mozilla developers reported memory safety bugs present in Firefox and Thunderbird 68.5. 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 vulnerability affects Thunder...
Mozilla Firefox
Mozilla Firefox Esr
Mozilla Thunderbird
Canonical Ubuntu Linux 16.04
Canonical Ubuntu Linux 18.04
Canonical Ubuntu Linux 19.10
5.3
CVSSv3
CVE-2020-6812
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
8.1
CVSSv3
CVE-2020-6819
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
Mozilla Thunderbird
Mozilla Firefox
Mozilla Firefox Esr
3 Articles
8.1
CVSSv3
CVE-2020-6820
Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
Mozilla Thunderbird
Mozilla Firefox
Mozilla Firefox Esr
3 Articles
7.5
CVSSv3
CVE-2020-6821
When reading from areas partially or fully outside the source resource with WebGL's <code>copyTexSubImage</code> method, the specification requires the returned values be zero. Previously, this memory was uninitialized, leading to potentially sensitive data discl...
Mozilla Firefox
Mozilla Firefox Esr
Mozilla Thunderbird
8.8
CVSSv3
CVE-2020-6822
On 32-bit builds, an out of bounds write could have occurred when processing an image larger than 4 GB in <code>GMPDecodeData</code>. It is possible that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Thunderbird &l...
Mozilla Firefox
Mozilla Firefox Esr
Mozilla Thunderbird
CVSSv3
CVSSv2
CVSSv3
VMScore
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