CVE-2020-26968

CVE-2020-26968 is a Mozilla Firefox/Thunderbird memory-safety issue. The provided documents indicate memory-safety bugs in Firefox 82 and ESR 78.4, with potential memory corruption that could allow running arbitrary code. Affected versions: Firefox < 83, Firefox ESR < 78.5, and Thunderbird

CVE-2020-26965

Some websites have a feature "Show Password" where clicking a button will change a password field into a textbook field, revealing the typed password. If, when using a software keyboard that remembers user input, a user typed their password and used that feature, the type of the password field wa...

NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0074)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has thunderbird packages installed that are affected by multiple vulnerabilities: - Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after- free. We are aware of targeted attack...

Denial Of Service (DoS)

Thunderbird, Firefox ESR, and Firefox are vulnerable to denial of service attacks. Lack of sanitations in faulty calculations of graphics region, before the call to SwizzleCopy may allow remote attackers to cause a system hang...

Mozilla: Parsing mismatches could confuse and bypass security sanitizer for chrome privileged code

A parsing and event loading mismatch in Firefox's SVG code could have allowed load events to fire, even after sanitization. An attacker already capable of exploiting an XSS vulnerability in privileged internal pages could have used this attack to bypass our built-in sanitizer. This vulnerability...

Mozilla: DoH did not filter IPv4 mapped IP Addresses

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 6. 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: Potential use-after-free in uses of nsTArray

If the Compact method was called on an nsTArray, the array could have been reallocated without updating other pointers, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox 83, Firefox ESR 78.5, and Thunderbird 78.5...

Mozilla: DoH did not filter IPv4 mapped IP Addresses

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding...

Mozilla: DoH did not filter IPv4 mapped IP Addresses

When DNS over HTTPS is in use, it intentionally filters RFC1918 and related IP ranges from the responses as these do not make sense coming from a DoH resolver. However when an IPv4 address was mapped through IPv6, these addresses were erroneously let through, leading to a potential DNS Rebinding...

Mozilla: Memory safety bugs fixed in Firefox 83 and Firefox ESR 78.5

Mozilla developers reported memory safety bugs present in Firefox 82 and Firefox ESR 78.4. 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 83, Firefox E...

RHEL 8 : thunderbird (RHSA-2020:5232)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:5232 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.5.0. Security Fixes: Mozilla:...

Oracle Linux 6 : thunderbird (ELSA-2020-4158)

The remote Oracle Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2020-4158 advisory. - Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption an...

Mozilla: Write side effects in MCallGetProperty opcode not accounted for

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox 82.0.3, Firefox ESR 78.4.1, and Thunderbird 78.4.2...

Debian DSA-4793-1 : 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, phishing, cross-site scripting or a DNS rebinding attack. C Tenable Network Security, Inc. The descriptive text and package check...

Debian: Security Advisory (DSA-4793-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2020 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...

Debian DLA-2457-1 : 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, phishing, cross-site scripting or a DNS rebinding attack. For Debian 9 stretch, these problems have been fixed in version...

[SECURITY] [DLA 2457-1] firefox-esr security update

------------------------------------------------------------------------- Debian LTS Advisory DLA-2457-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort November 19, 2020 https://wiki.debian.org/LTS -...

DLA-2457-1 firefox-esr - security update

Bulletin has no description...

[SECURITY] [DSA 4793-1] firefox-esr security update

------------------------------------------------------------------------- Debian Security Advisory DSA-4793-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff November 18, 2020 https://www.debian.org/security/faq -...