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CVE-2020-35111

Low priority

Some fixes available 21 of 33

When an extension with the proxy permission registered to receive <all_urls>, the proxy.onRequest callback was not triggered for view-source URLs. While web content cannot navigate to such URLs, a user opening View Source could...

7 affected packages

mozjs78, firefox, mozjs38, mozjs52, thunderbird...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
mozjs78 Not in release Ignored Not in release Not in release
firefox Fixed Fixed Fixed Fixed
mozjs38 Not in release Not in release Not in release Ignored
mozjs52 Not in release Not in release Ignored Ignored
thunderbird Fixed Fixed Fixed Fixed
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
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CVE-2020-26979

Low priority

Some fixes available 11 of 23

When a user typed a URL in the address bar or the search bar and quickly hit the enter key, a website could sometimes capture that event and then redirect the user before navigation occurred to the desired, entered address. To...

6 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68, mozjs78

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Fixed Fixed Fixed Fixed
mozjs38 Not in release Not in release Not in release Ignored
mozjs52 Not in release Not in release Ignored Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
mozjs78 Not in release Ignored Not in release Not in release
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CVE-2020-26978

Medium priority

Some fixes available 21 of 33

Using techniques that built on the slipstream research, a malicious webpage could have exposed both an internal network's hosts as well as services running on the user's local machine. This vulnerability affects Firefox < 84,...

7 affected packages

firefox, mozjs38, thunderbird, mozjs52, mozjs60...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Fixed Fixed Fixed Fixed
mozjs38 Not in release Not in release Not in release Ignored
thunderbird Fixed Fixed Fixed Fixed
mozjs52 Not in release Not in release Ignored Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs78 Not in release Ignored Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
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CVE-2020-26976

Medium priority

Some fixes available 21 of 33

When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due...

7 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Fixed Fixed Fixed Fixed
mozjs38 Not in release Not in release Not in release Ignored
mozjs52 Not in release Not in release Ignored Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
mozjs78 Not in release Ignored Not in release Not in release
thunderbird Fixed Fixed Fixed Fixed
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CVE-2020-26974

Medium priority

Some fixes available 21 of 33

When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object could have been incorrectly cast to the wrong type. This resulted in a heap user-after-free, memory corruption, and a potentially exploitable crash. This...

7 affected packages

firefox, mozjs52, mozjs60, mozjs68, mozjs78...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Fixed Fixed Fixed Fixed
mozjs52 Not in release Not in release Ignored Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
mozjs78 Not in release Ignored Not in release Not in release
thunderbird Fixed Fixed Fixed Fixed
mozjs38 Not in release Not in release Not in release Ignored
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CVE-2020-26973

Medium priority

Some fixes available 21 of 33

Certain input to the CSS Sanitizer confused it, resulting in incorrect components being removed. This could have been used as a sanitizer bypass. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

7 affected packages

firefox, mozjs52, thunderbird, mozjs78, mozjs38...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Fixed Fixed Fixed Fixed
mozjs52 Not in release Not in release Ignored Ignored
thunderbird Fixed Fixed Fixed Fixed
mozjs78 Not in release Ignored Not in release Not in release
mozjs38 Not in release Not in release Not in release Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
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CVE-2020-26972

Medium priority

Some fixes available 11 of 23

The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting...

6 affected packages

firefox, mozjs78, mozjs38, mozjs52, mozjs60, mozjs68

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Fixed Fixed Fixed Fixed
mozjs78 Not in release Ignored Not in release Not in release
mozjs38 Not in release Not in release Not in release Ignored
mozjs52 Not in release Not in release Ignored Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
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CVE-2020-26971

Medium priority

Some fixes available 21 of 33

Certain blit values provided by the user were not properly constrained leading to a heap buffer overflow on some video drivers. This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6.

7 affected packages

firefox, mozjs38, mozjs52, mozjs60, thunderbird...

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Fixed Fixed Fixed Fixed
mozjs38 Not in release Not in release Not in release Ignored
mozjs52 Not in release Not in release Ignored Ignored
mozjs60 Not in release Not in release Not in release Not in release
thunderbird Fixed Fixed Fixed Fixed
mozjs78 Not in release Ignored Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
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CVE-2020-26966

Low priority
Ignored

Searching for a single word from the address bar caused an mDNS request to be sent on the local network searching for a hostname consisting of that string; resulting in an information leak. *Note: This issue only affected Windows...

6 affected packages

firefox, mozjs38, mozjs60, mozjs68, mozjs52, thunderbird

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not in release Not affected
mozjs38 Not in release Not in release Not in release Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
mozjs52 Not in release Not in release Ignored Ignored
thunderbird Not affected Not affected Not in release Not affected
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CVE-2020-26964

Low priority
Ignored

If the Remote Debugging via USB feature was enabled in Firefox for Android on an Android version prior to Android 6.0, untrusted apps could have connected to the feature and operated with the privileges of the browser to read and...

5 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68

Package 24.04 LTS 22.04 LTS 20.04 LTS 18.04 LTS
firefox Not affected Not affected Not in release Not affected
mozjs38 Not in release Not in release Not in release Ignored
mozjs52 Not in release Not in release Ignored Ignored
mozjs60 Not in release Not in release Not in release Not in release
mozjs68 Not in release Not in release Ignored Not in release
Show less packages