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...

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...

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...

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 9...

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...

Mozilla Firefox ESR < 91.4.0

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 91.4.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-53 advisory. - Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith,...

Mozilla Firefox ESR < 91.4.0

The version of Firefox ESR installed on the remote Windows host is prior to 91.4.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-53 advisory. - Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian...

UBUNTU-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...

Mozilla Firefox ESR 资源管理错误漏洞

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the U.S. Mozilla Firefox is vulnerable to a resource management error that can be exploited by attackers to cause a potentially exploitable crash...

KLA12375 Multiple vulnerabilities in Mozilla Firefox ESR

Multiple vulnerabilities were found in Mozilla Firefox ESR. Malicious users can exploit these vulnerabilities to spoof user interface, obtain sensitive information, cause denial of service, bypass security restrictions, execute arbitrary code. Below is a complete list of vulnerabilities: 1...

PT-2021-6936 · Mozilla +7 · Firefox Esr +9

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 95 Firefox ESR versions prior to 91.4.0 Thunderbird versions prior to 91.4.0 Description: The issue is related to memory safety bugs, including evidence of memory corruption, which could potentially be exploited to r...

Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain

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...

Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing

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,...

Security fix for the ALT Linux 10 package firefox-esr version 91.3.0-alt1

91.3.0-alt1 built Nov. 9, 2021 Andrey Cherepanov in task 288753 Nov. 2, 2021 Andrey Cherepanov - New ESR version. - Security fixes: + CVE-2021-38503 iframe sandbox rules did not apply to XSLT stylesheets + CVE-2021-38504 Use-after-free in file picker dialog + CVE-2021-38505 Windows 10 Cloud...

Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain

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...

Mozilla: Permission Prompt could be overlaid, resulting in user confusion and potential spoofing

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,...

Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain

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...

Mozilla: Javascript alert box could have been spoofed onto an arbitrary domain

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...

CVE-2021-38498

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, and Firefox ESR 91.2...

CVE-2021-38495

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 code. This vulnerability affects Thunderbird 91.1 and Firefox ESR...