PT-2019-4539 · Mozilla+3 · Firefox+3

Nils · Published 2019-04-26 · Updated 2024-12-12 · CVE-2019-9821

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 67

Description A use-after-free issue can occur in the AssertWorkerThread due to a race condition with shared workers, resulting in a potentially exploitable crash. This issue may allow a remote attacker to access sensitive data, compromise data integrity, and cause a denial of service.

Recommendations For versions prior to 67, update to version 67 or later to resolve the issue.

Fix

Race Condition

Use After Free

Weakness Enumeration

CWE-362

CWE-416

Related Identifiers

ALT-PU-2019-1941

ALT-PU-2019-2324

ALT-PU-2019-2479

ALT-PU-2019-2486

BDU:2020-00585

CVE-2019-9821

OPENSUSE-SU-2019:1534-1

OPENSUSE-SU-2019_1534-1

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

USN-3991-1

USN-3991-2

USN-3991-3

Affected Products

Alt Linux

Firefox

Suse

Ubuntu

References · 1903

• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-9821 · Security Note
• https://ubuntu.com/security/CVE-2019-9816 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:1534-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-9800 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-9820 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11692 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3991-3 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-9821 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11696 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11691 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11697 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-00585 · Security Note
• https://ubuntu.com/security/CVE-2019-11699 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3991-1 · Vendor Advisory