CVE-2020-12387

CVE-2020-12387 is a use-after-free vulnerability caused by a race condition during Web Worker shutdown in Mozilla Firefox/Thunderbird. Affected products include Firefox ESR < 68.8, Firefox < 76, and Thunderbird

CVE-2020-12387

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR 68.8, Firefox 76, and Thunderbird 68.8.0...

CVE-2020-12387

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR 68.8, Firefox 76, and Thunderbird 68.8.0...

CVE-2020-12387

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR 68.8, Firefox 76, and Thunderbird 68.8.0...

CVE-2020-12387: Concurrent Execution using Shared Resource with Improper Synchronization

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR 68.8, Firefox 76, and Thunderbird 68.8.0...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

Mozilla: Use-after-free during worker shutdown

A flaw was found in Mozilla Firefox and Thunderbird. When running shutdown code for Web Worker, a race condition occurs leading to a use-after-free memory flaw that could lead to an exploitable crash. The highest threat from this vulnerability is to data confidentiality and integrity as well as...

CVE-2020-12387

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR 68.8, Firefox 76, and Thunderbird 68.8.0...

UBUNTU-CVE-2020-12387

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR 68.8, Firefox 76, and Thunderbird 68.8.0...

PT-2020-3494

Name of the Vulnerable Software and Affected Versions Firefox ESR versions prior to 68.8 Firefox versions prior to 76 Thunderbird versions prior to 68.8.0 Description A race condition when running shutdown code for Web Worker led to a use-after-free issue, resulting in a potentially exploitable...

Security Vulnerabilities fixed in Firefox ESR 68.8 — Mozilla

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape.Note: this issue only affects Firef...

Mozilla Firefox < 57.0.1 Multiple Vulnerabilities

Binary data 700323.prm...

Mozilla Firefox Web Worker DoS

The vulnerability of the Web Worker mechanism implemented by Mozilla Firefox lies in the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability can allow a remote attacker to cause a service failure...