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CVE-2020-26955

Medium priority
Ignored

When a user downloaded a file in Firefox for Android, if a cookie is set, it would have been re-sent during a subsequent file download operation on the same domain, regardless of whether the original and subsequent request were in...

5 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68

Package 26.04 LTS 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
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CVE-2020-26954

Medium priority
Ignored

When accepting a malicious intent from other installed apps, Firefox for Android accepted manifests from arbitrary file paths and allowed declaring webapp manifests for other origins. This could be used to gain fullscreen access...

5 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68

Package 26.04 LTS 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
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CVE-2020-26969

Medium priority

Some fixes available 11 of 17

Mozilla developers reported memory safety bugs present in Firefox 82. 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....

5 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68

Package 26.04 LTS 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
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CVE-2020-26968

Medium priority

Some fixes available 21 of 27

Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to...

6 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68, thunderbird

Package 26.04 LTS 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
thunderbird Fixed Fixed Fixed Fixed
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CVE-2020-26967

Low priority

Some fixes available 11 of 17

When listening for page changes with a Mutation Observer, a malicious web page could confuse Firefox Screenshots into interacting with elements other than those that it injected into the page. This would lead to internal errors...

5 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68

Package 26.04 LTS 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
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CVE-2020-26965

Low priority

Some fixes available 21 of 27

Some websites have a feature "Show Password" where clicking a button will change a password field into a textbook field, revealing the typed password. If, when using a software keyboard that remembers user input, a user typed...

6 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68, thunderbird

Package 26.04 LTS 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
thunderbird Fixed Fixed Fixed Fixed
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CVE-2020-26963

Low priority

Some fixes available 11 of 17

Repeated calls to the history and location interfaces could have been used to hang the browser. This was addressed by introducing rate-limiting to these API calls. This vulnerability affects Firefox < 83.

5 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68

Package 26.04 LTS 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
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CVE-2020-26962

Low priority

Some fixes available 11 of 17

Cross-origin iframes that contained a login form could have been recognized by the login autofill service, and populated. This could have been used in clickjacking attacks, as well as be read across partitions in dynamic...

5 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68

Package 26.04 LTS 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
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CVE-2020-26961

Medium priority

Some fixes available 21 of 27

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses...

6 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68, thunderbird

Package 26.04 LTS 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
thunderbird Fixed Fixed Fixed Fixed
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CVE-2020-26960

Medium priority

Some fixes available 21 of 27

If the Compact() method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 83,...

6 affected packages

firefox, mozjs38, mozjs52, mozjs60, mozjs68, thunderbird

Package 26.04 LTS 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
thunderbird Fixed Fixed Fixed Fixed
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