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CVE-2021-38500
Medium prioritySome fixes available 17 of 27
Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |
CVE-2021-38498
Medium prioritySome fixes available 17 of 27
During process shutdown, a document could have caused a use-after-free of a languages service object, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.2,...
6 affected packages
firefox, mozjs38, mozjs52, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |
CVE-2021-38497
Medium prioritySome fixes available 17 of 27
Through use of reportValidity() and window.open(), a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability affects Firefox < 93,...
6 affected packages
firefox, mozjs38, mozjs52, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |
CVE-2021-38496
Medium prioritySome fixes available 17 of 27
During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2,...
6 affected packages
firefox, mozjs38, mozjs52, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |
CVE-2021-38495
Medium prioritySome fixes available 2 of 3
Mozilla developers reported memory safety bugs present in Thunderbird 78.13.0. 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...
1 affected packages
thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| thunderbird | — | Not affected | Fixed | Fixed | Ignored |
CVE-2021-38492
Medium priorityWhen delegating navigations to the operating system, Firefox would accept the `mk` scheme which might allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode. *This bug only affects Firefox...
7 affected packages
firefox, firefox-esr, mozjs38, mozjs52, mozjs68...
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Not affected | Not affected | Not affected | Not affected | Not affected |
| firefox-esr | Not in release | Not in release | Not in release | Not in release | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Not affected | Not affected | Not affected | Not affected | Not affected |
CVE-2021-38509
Medium prioritySome fixes available 17 of 27
Due to an unusual sequence of attacker-controlled events, a Javascript alert() dialog with arbitrary (although unstyled) contents could be displayed over top an uncontrolled webpage of the attacker's choosing. This vulnerability...
6 affected packages
firefox, mozjs38, mozjs52, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |
CVE-2021-38508
Medium prioritySome fixes available 17 of 27
By displaying a form validity message in the correct location at the same time as a permission prompt (such as for geolocation), the validity message could have obscured the prompt, resulting in the user potentially being tricked...
6 affected packages
firefox, mozjs38, mozjs52, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |
CVE-2021-38507
Medium prioritySome fixes available 17 of 27
The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections...
6 affected packages
firefox, mozjs38, mozjs52, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |
CVE-2021-38506
Medium prioritySome fixes available 17 of 27
Through a series of navigations, Firefox could have entered fullscreen mode without notification or warning to the user. This could lead to spoofing attacks on the browser UI including phishing. This vulnerability affects Firefox...
6 affected packages
firefox, mozjs38, mozjs52, mozjs68, mozjs78, thunderbird
| Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS | 16.04 LTS |
|---|---|---|---|---|---|
| firefox | Fixed | Fixed | Fixed | Fixed | Ignored |
| mozjs38 | Not in release | Not in release | Not in release | Ignored | Not in release |
| mozjs52 | Not in release | Not in release | Ignored | Ignored | Not in release |
| mozjs68 | Not in release | Not in release | Ignored | Not in release | Not in release |
| mozjs78 | Not in release | Ignored | Not in release | Not in release | Not in release |
| thunderbird | Fixed | Fixed | Fixed | Fixed | Ignored |