CVE-2019-11708criticalunder attackCWE-20

CVE-2019-11708: critical vulnerability in Mozilla Firefox

Published · Updated

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98Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA and has a public proof of concept.

ssvc Actcvss 10epss 56%
from disclosure to weapon68 days
Published on NVDJul 23
1st PoC+68d
CISA KEV+1035d
What the vendors declare (VEX)

Official vendor statements in CSAF/VEX format: whether their product is affected, already fixed, or ruled out — and why. These are the vendor's assertions, not Vexday's judgment.

Red HatVEX document ↗
Fixed
16 products (229 components)
Red Hat Enterprise Linux AppStream (v. 8) · Red Hat Enterprise Linux Client (v. 7) · Red Hat Enterprise Linux Server Optional (v. 7) · Red Hat Enterprise Linux Workstation (v. 7) · Red Hat Enterprise Linux Desktop (v. 6) · and others 11
fix ↗
Action required by CISAfederal deadline: 2022-06-13

Apply updates per vendor instructions.

In short

A compromised child process in Firefox can trick the parent process into opening malicious web content without proper verification, potentially leading to arbitrary code execution on the user's computer.

Technical detail

Insufficient validation of Prompt:Open IPC messages allows a sandboxed child process to manipulate the non-sandboxed parent process into opening attacker-controlled content. Combined with other vulnerabilities, this can lead to remote code execution. Affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
Mozilla · FirefoxMozilla · Firefox ESRMozilla · Thunderbird
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