CVE-2021-29946

Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

UBUNTU-CVE-2021-29946

Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Debian: Security Advisory (DSA-4895-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

Privilege Escalation

firefox-esr is vulnerable to privilege escalation. An attacker is able to load a malicious Blob URL through the System Principal and gain additional privileges...

Arbitrary Code Execution

firefox-esr:sid is vulnerable to arbitrary code execution. When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code...

Data Forgery Problem Vulnerability in Multiple Mozilla Products (CNVD-2021-49136)

Mozilla Firefox is an open source web browser.Mozilla Firefox ESR is an extended support version of Firefox web browser.Mozilla Thunderbird is a suite of email client software separate from the Mozilla Application Suite. A security vulnerability exists in several Mozilla products, which can be...

Parameter Injection Vulnerability in Multiple Mozilla Products

Mozilla Firefox is an open source web browser.Mozilla Firefox ESR is an extended support version of Firefox web browser.Mozilla Thunderbird is a suite of email client software separate from the Mozilla Application Suite. A security vulnerability exists in several Mozilla products, which can be...

Security fix for the ALT Linux 10 package firefox-esr version 78.10.0-alt1

April 21, 2021 Andrey Cherepanov 78.10.0-alt1 - New version 78.10.0. - Security fixes: + CVE-2021-23994 Out of bound write due to lazy initialization + CVE-2021-23995 Use-after-free in Responsive Design Mode + CVE-2021-23998 Secure Lock icon could have been spoofed + CVE-2021-23961 More internal...

[SECURITY] [DSA 4895-1] firefox-esr security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4895-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 20, 2021 https://www.debian.org/security/faq -...

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-29945

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. Note: This issue only affected x86-32 platforms. Other platforms are unaffected.. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-24002

When a user clicked on an FTP URL containing encoded newline characters %0A and %0D, the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23999

If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23998

Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Mozilla Releases Security Update for Firefox, Firefox ESR, and Thunderbird

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. An attacker can exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Mozilla Security Advisories for Firefox 88...

Mozilla Firefox ESR Security Advisories (MFSA2021-13, MFSA2021-16) - 01 - Windows

Mozilla Firefox ESR is prone to a denial of service vulnerability. SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE =...

Mozilla Firefox ESR Security Advisories (MFSA2021-13, MFSA2021-16) - Windows

Mozilla Firefox ESR is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:mozilla:firefoxesr";...

DSA-4895-1 firefox-esr - security update

Bulletin has no description...

Mozilla Firefox ESR Security Advisories (MFSA2021-13, MFSA2021-16) - Mac OS X

Mozilla Firefox ESR is prone to multiple vulnerabilities. SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:mozilla:firefoxesr";...

KLA12150 Multiple vulnerabilities in Mozilla Firefox ESR

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