CVE-2020-12396 vulnerabilities and exploits

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7.5

CVSSv2

Mozilla developers and community members reported memory safety bugs present in Firefox 75. 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 Fir...

Mozilla Firefox

7.5

CVSSv2

Incorrect origin serialization of URLs with IPv6 addresses could lead to incorrect security checks. This vulnerability affects Firefox < 76.

Mozilla Firefox

5

CVSSv2

Documents formed using data: URLs in an OBJECT element failed to inherit the CSP of the creating context. This allowed the execution of scripts that should have been blocked, albeit with a unique opaque origin. This vulnerability affects Firefox < 76.

Mozilla Firefox

2.1

CVSSv2

A logic flaw in our location bar implementation could have allowed a local malicious user to spoof the current location by selecting a different origin and removing focus from the input element. This vulnerability affects Firefox < 76.

Mozilla Firefox

6.8

CVSSv2

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

10

CVSSv2

Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. 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 vuln...

Mozilla Thunderbird Mozilla Firefox Mozilla Firefox Esr Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 16.04

2.1

CVSSv2

The 'Copy as cURL' feature of Devtools' network tab did not properly escape the HTTP POST data 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 i...

Mozilla Thunderbird Mozilla Firefox Mozilla Firefox Esr Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 20.04 Canonical Ubuntu Linux 16.04

7.5

CVSSv2

A buffer overflow could occur when parsing and validating SCTP chunks in WebRTC. This could have led to memory corruption and 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 Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 20.04 Debian Debian Linux 9.0 Debian Debian Linux 10.0 Opensuse Leap 15.2

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