CVE-2020-12405 vulnerabilities and exploits

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2.6

CVSSv2

When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

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

1 Article

6.8

CVSSv2

When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL. This vulnerability affects Firefox < 77.

Mozilla Firefox

1 Article

4.3

CVSSv2

When browsing a document hosted on an IP address, an attacker could insert certain characters to flip domain and path information in the address bar. This vulnerability affects Firefox < 77.

Mozilla Firefox

1 Article

9.3

CVSSv2

Mozilla developers reported memory safety bugs present in Firefox 76. 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 Firefox < 77.

Mozilla Firefox

1 Article

2.6

CVSSv2

Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible screen. The leaked memory content was visible to the user, but not observable from web content. This vulnerability affects Firefox <...

Mozilla Firefox

1 Article

9.3

CVSSv2

Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firef...

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

1 Article

9.3

CVSSv2

Mozilla developers reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. 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 Thun...

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

1 Article

4.3

CVSSv2

If Thunderbird is configured to use STARTTLS for an IMAP server, and the server sends a PREAUTH response, then Thunderbird will continue with an unencrypted connection, causing email data to be sent without protection. This vulnerability affects Thunderbird < 68.9.0.

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

1.2

CVSSv2

NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. This vulnerability affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

Mozilla Firefox Mozilla Firefox Esr Mozilla Thunderbird Debian Debian Linux 9.0

1 Article

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