CVE-2021-29982

Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox 91 and Thunderbird 91...

SUSE-SU-2021:2691-1 Security update for MozillaFirefox

This update for MozillaFirefox fixes the following issues: Firefox Extended Support Release 78.13.0 ESR MFSA 2021-34, bsc1188891: - CVE-2021-29986: Race condition when resolving DNS names could have led to memory corruption - CVE-2021-29988: Memory corruption as a result of incorrect style...

Important: Red Hat Security Advisory: firefox security update

An update for firefox is now available for Red Hat Enterprise Linux 7. 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 from t...

Mozilla: Incorrect instruction reordering during JIT optimization

Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird 78.13, Thunderbird 91, Firefox ESR 78.13, and...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. 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...

Important: Red Hat Security Advisory: thunderbird security update

An update for thunderbird 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 Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 78.13.0 ESR. Security Fixes: Mozilla: Uninitialized memory in a canvas object could have led to memory corruption CVE-2021-29980 Mozilla: Incorre...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.13.0. Security Fixes: Mozilla: Uninitialized memory in a canvas object could have led to memory corruption CVE-2021-29980 Mozilla: Incorrect instruction reordering during JIT optimization...

CentOS 8 : firefox (CESA-2021:3157)

The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2021:3157 advisory. - Mozilla: Uninitialized memory in a canvas object could have led to memory corruption CVE-2021-29980 - Mozilla: Incorrect instruction reordering durin...

RHEL 8 : thunderbird (RHSA-2021:3155)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:3155 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.13.0. Security Fixes: Mozilla:...

RHEL 8 : firefox (RHSA-2021:3156)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:3156 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox...

RHEL 8 : thunderbird (RHSA-2021:3161)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:3161 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.13.0. Security Fixes: Mozilla:...

RHEL 8 : thunderbird (RHSA-2021:3162)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:3162 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. This update upgrades Thunderbird to version 78.13.0. Security Fixes: Mozilla:...

RHEL 8 : firefox (RHSA-2021:3157)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:3157 advisory. Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox...

Ubuntu 18.04 LTS / 20.04 LTS : Firefox vulnerabilities (USN-5037-1)

The remote Ubuntu 18.04 LTS / 20.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-5037-1 advisory. Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could...

Security fix for the ALT Linux 10 package thunderbird version 91.0-alt1

Aug. 12, 2021 Andrey Cherepanov 91.0-alt1 - New version. - Security fixes: + CVE-2021-29986 Race condition when resolving DNS names could have led to memory corruption + CVE-2021-29981 Live range splitting could have led to conflicting assignments in the JIT + CVE-2021-29988 Memory corruption as ...

Denial Of Service (DoS)

firefox is vulnerable to denial of service. An exploitable crash is possible from incorrect instruction reordering during JIT optimization...

UBUNTU-CVE-2021-29982

Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox 91 and Thunderbird 91...

Mozilla Firefox和Mozilla Thunderbird 安全漏洞

Mozilla Firefox is an open source web browser from the Mozilla Foundation in the U.S. Mozilla Firefox is vulnerable to a type obfuscation vulnerability that stems from a faulty JIT optimization and a type obfuscation error. A remote attacker could trick a victim into opening a carefully construct...

Mozilla Firefox < 91.0

The version of Firefox installed on the remote macOS or Mac OS X host is prior to 91.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-33 advisory. - Mozilla developers and community members Kershaw Chang, Philipp, Chris Peterson, and Sebastian Hengst reporte...