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Search Results (Refine Search)

Search Parameters:
  • Results Type: Overview
  • Keyword (text search): cpe:2.3:a:mozilla:thunderbird:45.0:beta3:*:*:*:*:*:*
  • CPE Name Search: true
There are 407 matching records.
Displaying matches 1 through 20.
Vuln ID Summary CVSS Severity
CVE-2021-43546

It was possible to recreate previous cursor spoofing attacks against users with a zoomed native cursor. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:10 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43545

Using the Location API in a loop could have caused severe application hangs and crashes. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:10 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43543

Documents loaded with the CSP sandbox directive could have escaped the sandbox's script restriction by embedding additional content. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 6.1 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43542

Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43541

When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43539

Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-43538

By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43537

An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-43536

Under certain circumstances, asynchronous functions could have caused a navigation to fail but expose the target URL. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-43535

A use-after-free could have occured when an HTTP2 session object was released on a different thread, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-43534

Mozilla developers and community members reported memory safety bugs present in Firefox 93 and Firefox ESR 91.2. 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 < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-43528

Thunderbird unexpectedly enabled JavaScript in the composition area. The JavaScript execution context was limited to this area and did not receive chrome-level privileges, but could be used as a stepping stone to further an attack with other vulnerabilities. This vulnerability affects Thunderbird < 91.4.0.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-38510

The executable file warning was not presented when downloading .inetloc files, which, due to a flaw in Mac OS, can run commands on a user's computer.*Note: This issue only affected Mac OS operating systems. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 8.8 HIGH
V2.0: 6.8 MEDIUM
CVE-2021-38509

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 affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-38508

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 into granting the permission. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:09 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-38507

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 on port 80. However, if a second encrypted port on the same IP address (e.g. port 8443) did not opt-in to opportunistic encryption; a network attacker could forward a connection from the browser to port 443 to port 8443, causing the browser to treat the content of port 8443 as same-origin with HTTP. This was resolved by disabling the Opportunistic Encryption feature, which had low usage. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:08 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-38506

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 < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:08 PM -0500
V3.1: 4.3 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-38505

Microsoft introduced a new feature in Windows 10 known as Cloud Clipboard which, if enabled, will record data copied to the clipboard to the cloud, and make it available on other computers in certain scenarios. Applications that wish to prevent copied data from being recorded in Cloud History must use specific clipboard formats; and Firefox before versions 94 and ESR 91.3 did not implement them. This could have caused sensitive data to be recorded to a user's Microsoft account. *This bug only affects Firefox for Windows 10+ with Cloud Clipboard enabled. Other operating systems are unaffected.*. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:08 PM -0500
V3.1: 6.5 MEDIUM
V2.0: 4.3 MEDIUM
CVE-2021-38504

When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:08 PM -0500
V3.1: 9.8 CRITICAL
V2.0: 7.5 HIGH
CVE-2021-38503

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Published: December 08, 2021; 5:15:08 PM -0500
V3.1: 10.0 CRITICAL
V2.0: 7.5 HIGH