Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. 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 86, Thunderbi...

Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. 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 86, Thunderbi...

Mozilla: Content Security Policy violation report could have contained the destination of a redirect

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox 86,...

Critical: Red Hat Security Advisory: firefox security update

An update for firefox is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Mozilla: MediaError message property could have leaked information about cross-origin resources

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox 86, Thunderbird 78.8, and Firefox ESR 78.8...

Mozilla: Content Security Policy violation report could have contained the destination of a redirect

As specified in the W3C Content Security Policy draft, when creating a violation report, "User agents need to ensure that the source file is the URL requested by the page, pre-redirects. If that’s not possible, user agents need to strip the URL down to an origin to avoid unintentional leakage."...

Mozilla: MediaError message property could have leaked information about cross-origin resources

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox 86, Thunderbird 78.8, and Firefox ESR 78.8...

Mozilla: Memory safety bugs fixed in Firefox 86 and Firefox ESR 78.8

Mozilla developers reported memory safety bugs present in Firefox 85 and Firefox ESR 78.7. 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 86, Thunderbi...

CVE-2021-23973

When trying to load a cross-origin resource in an audio/video context a decoding error may have resulted, and the content of that error may have revealed information about the resource. This vulnerability affects Firefox 86, Thunderbird 78.8, and Firefox ESR 78.8...

CVE-2021-23968

If Content Security Policy blocked frame navigation, the full destination of a redirect served in the frame was reported in the violation report; as opposed to the original frame URI. This could be used to leak sensitive information contained in such URIs. This vulnerability affects Firefox 86,...

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

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. An attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Mozilla security advisories for Firefox 86,...

Vulnerabilities fixed in Mozilla Firefox, Firefox ESR and Thunderbird

Vulnerabilities have been fixed in Firefox and Firefox ESR. The vulnerabilities allow a malicious party to carry out attacks execute attacks that lead to the following categories of damage: Denial-of-Service DoS Circumvention of security measure Remote code execution User rights Spoofing Accessin...

Mozilla Firefox ESR Security Advisories (MFSA2021-07, MFSA2021-09) - 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";...

Mozilla Firefox ESR Security Advisories (MFSA2021-07, MFSA2021-09) - 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";...

RHEL 8 : thunderbird (RHSA-2021:0658)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0658 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0. Security Fixes: Mozilla:...

RHEL 7 : thunderbird (RHSA-2021:0661)

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0661 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0. Security Fixes: Mozilla:...

RHEL 8 : thunderbird (RHSA-2021:0662)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:0662 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.8.0. Security Fixes: Mozilla:...

DSA-4862-1 firefox-esr - security update

Bulletin has no description...

Mozilla Firefox ESR < 78.8

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 78.8. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-08 advisory. - Mozilla developers Alexis Beingessner, Tyson Smith, Nika Layzell, and Mats Palmgren reported memory safet...

Mozilla Firefox ESR < 78.8

The version of Firefox ESR installed on the remote Windows host is prior to 78.8. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-08 advisory. - Mozilla developers Alexis Beingessner, Tyson Smith, Nika Layzell, and Mats Palmgren reported memory safety bugs...