CVE-2021-38500

Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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 78.15,...

CVE-2021-38501

Mozilla developers reported memory safety bugs present in Firefox 92 and Firefox ESR 91.1. 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 93, Thunderbi...

CVE-2021-38497

Through use of reportValidity and window.open, a plain-text validation message could have been overlaid on another origin, leading to possible user confusion and spoofing attacks. This vulnerability affects Firefox 93, Thunderbird 91.2, and Firefox ESR 91.2...

Mozilla Releases Security Updates for Firefox and Firefox ESR

Mozilla has released security updates to address vulnerabilities in Firefox and Firefox ESR . An 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 Firefox 93, Firefox E...

DSA-4981-1 firefox-esr - security update

Bulletin has no description...

Vulnerabilities fixed in Mozilla Firefox

Mozilla has fixed vulnerabilities in Firefox and Firefox ESR. The vulnerabilities potentially enable a remote malicious person to able to launch attacks that result in the following categories of damage: Denial-of-Service DoS Circumvention of security measure. Remote code execution User rights On...

Mozilla Firefox ESR < 91.2

The version of Firefox ESR installed on the remote Windows host is prior to 91.2. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-45 advisory. - Mozilla developers and community members Kevin Brosnan, Mihai Alexandru Michis, and Christian Holler reported memor...

Mozilla Firefox ESR < 78.15

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 78.15. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-44 advisory. - Mozilla developers and community members Andreas Pehrson and Christian Holler reported memory safety bug...

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...

KLA12305 Multiple vulnerabilities in Mozilla Firefox ESR

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

Mozilla Firefox ESR < 78.15

The version of Firefox ESR installed on the remote Windows host is prior to 78.15. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-44 advisory. - Mozilla developers and community members Andreas Pehrson and Christian Holler reported memory safety bugs present ...

KLA12304 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, execute arbitrary code. Below is a complete list of vulnerabilities: 1. An use after free vulnerability in MessageTask can be exploited to cause denial of...

SUSE SLES11: MozillaFirefox / MozillaFirefox-translations-common / etc (SUSE-SU-2021:14821-1)

The remote SUSE Linux SLES11 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:14821-1 advisory. This update contains the Firefox Extended Support Release 91.1.0 ESR. Fixed: Various stability, functionality, and security fixes MFSA 2021-40...

Security fix for the ALT Linux 10 package firefox-esr version 91.1.0-alt1

91.1.0-alt1 built Sept. 24, 2021 Andrey Cherepanov in task 284980 Sept. 7, 2021 Andrey Cherepanov - New ESR version. - Security fixes: + CVE-2021-38492 Navigating to mk: URL scheme could load Internet Explorer + CVE-2021-38495 Memory safety bugs fixed in Firefox 92 and Firefox ESR 91.1...

CentOS 7 : thunderbird (RHSA-2021:3494)

The remote CentOS Linux 7 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2021:3494 advisory. - Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we...

CentOS 8 : thunderbird (CESA-2021:3499)

The remote CentOS Linux 8 host has a package installed that is affected by a vulnerability as referenced in the CESA-2021:3499 advisory. - Mozilla: Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1 CVE-2021-38493 Note that Nessus has not tested for this issue but has...

thunderbird security update

An update is available for thunderbird. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list Mozilla Thunderbird is a standalone mail and newsgroup client. This updat...

Scientific Linux Security Update : thunderbird on SL7.x x86_64 (2021:3494)

The remote Scientific Linux 7 host has packages installed that are affected by a vulnerability as referenced in the SLSA-2021:3494-1 advisory. - Mozilla: Memory safety bugs fixed in Firefox 92, Firefox ESR 78.14 and Firefox ESR 91.1 CVE-2021-38493 Note that Nessus has not tested for this issue bu...

RHEL 7 : thunderbird (RHSA-2021:3494)

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2021:3494 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.14.0. Security Fixes: Mozilla: Memory...

RHEL 8 : firefox (RHSA-2021:3497)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2021:3497 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to versi...