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...

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...

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...

Mozilla: Memory safety bugs fixed in Firefox 95 and Firefox ESR 91.4

The Mozilla Foundation Security Advisory describes this flaw as: Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Thunderbird 91.3. Some of these bugs showed evidence o...

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...

UBUNTU-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...

UBUNTU-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...

Mozilla Thunderbird < 91.3

The version of Thunderbird installed on the remote Windows host is prior to 91.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-50 advisory. - The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions...

Mozilla Thunderbird < 91.3

The version of Thunderbird installed on the remote macOS or Mac OS X host is prior to 91.3. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-50 advisory. - The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass...

UBUNTU-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...

Security Vulnerabilities fixed in Firefox ESR 91.3 — Mozilla

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. When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have...

PT-2021-5403 · Mozilla +7 · Firefox Esr +9

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 94 Thunderbird versions prior to 91.3 Firefox ESR versions prior to 91.3 Description: The issue is related to a buffer overflow in memory, which could allow a remote attacker to execute arbitrary code. Memory safety...

PT-2021-5402 · Mozilla +7 · Firefox Esr +9

Name of the Vulnerable Software and Affected Versions: Firefox versions prior to 93 Thunderbird versions prior to 91.3 Firefox ESR versions prior to 91.3 Description: A use-after-free issue could have occurred when an HTTP2 session object was released on a different thread, leading to memory...