CVE-2021-23987

Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. 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 Firefox ESR Security Advisories (MFSA2021-10, MFSA2021-12) - 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";...

Debian DSA-4874-1 : firefox-esr - security update

Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, information disclosure or spoofing attacks. C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from...

Debian: Security Advisory (DLA-2607-1)

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...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fr...

Mozilla: Memory safety bugs fixed in Firefox 87 and Firefox ESR 78.9

The Mozilla Foundation Security Advisory describes this issue as: Mozilla developers and community members reported memory safety bugs present in Firefox 86 and Firefox ESR 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could hav...

Mozilla: Internal network hosts could have been probed by a malicious webpage

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR 78.9, Firefox 87, and Thunderbird 78.9...

Remote Code Execution (RCE)

firefox-esr / thunderbird is vulnerable to remote code execution. When a user is surfing a malicious webpage, it could scanned both an internal network’s hosts as well as services running on the user’s local machine utilizing WebRTC connections...

CVE-2021-23982

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR 78.9, Firefox 87, and Thunderbird 78.9...

Debian: Security Advisory (DSA-4874-1)

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...

RHEL 8 : firefox (RHSA-2021:0989)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0989 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox...

DLA-2607-1 firefox-esr - security update

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CVE-2021-23984

A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. This...

CVE-2021-23982

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR 78.9, Firefox 87, and Thunderbird 78.9...

CVE-2021-23981

A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash. This vulnerability affects Firefox ESR 78.9, Firefox 87, and Thunderbird 78.9...

UBUNTU-CVE-2021-23982

Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network's hosts as well as services running on the user's local machine utilizing WebRTC connections. This vulnerability affects Firefox ESR 78.9, Firefox 87, and Thunderbird 78.9...

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

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Mozilla security advisories for...

DSA-4874-1 firefox-esr - security update

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KLA12128 Multiple vulnerabilities in Mozilla Firefox ESR

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

Security fix for the ALT Linux 10 package firefox-esr version 78.9.0-alt1

March 23, 2021 Andrey Cherepanov 78.9.0-alt1 - New version 78.9.0. - Security fixes: + CVE-2021-23981 Texture upload into an unbound backing buffer resulted in an out-of-bound read + CVE-2021-23982 Internal network hosts could have been probed by a malicious webpage + CVE-2021-23984 Malicious...