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CVE-2019-11708

Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxe

Firefox before 67.0.4, and Firefox ESR and Thunderbird before 60.7.2, are affected. The fixes are in Firefox 67.0.4, Firefox ESR 60.7.2 and Thunderbird 60.7.2.

Published
Last modified
published
Listed in CISA KEV
Actively exploited
Fix
Fixed in 60.7.2, 67.0.4
None on Exploit-DB, Metasploit or GitHub

Summary

Firefox and Thunderbird, the Mozilla web browser and email client, are affected by this flaw, which lets a compromised content process cause the unsandboxed parent process to open web content of its choosing. When chained with other vulnerabilities, this could allow an attacker to run arbitrary code on the user's computer.

Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.

Read the original description

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.

Timeline

  1. CVE published
  2. Added to CISA KEV

    CISA has evidence of exploitation in the wild

  3. CISA remediation deadline

    Due date for US federal agencies to patch

  4. Record last updated
  5. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • Mozilla Firefox ESR

    From unspecified · fixed in 60.7.2

  • Mozilla Firefox

    From unspecified · fixed in 67.0.4

  • Mozilla Thunderbird

    From unspecified · fixed in 60.7.2

References 5

mozilla.org

bugzilla.mozilla.org

security.gentoo.org

packetstormsecurity.com

FAQ

Questions about CVE-2019-11708

What does this mean?

The Prompt:Open IPC message does not check its parameters well enough. A compromised child process can use it to make the non-sandboxed parent process open web content of its choice. Combined with additional vulnerabilities, this could result in arbitrary code execution on the user's computer.Source: mozilla.org

Am I affected, and how do I check?

Firefox versions before 67.0.4, Firefox ESR versions before 60.7.2, and Thunderbird versions before 60.7.2 are affected, with no earlier introduction version given. Compare the installed version with these fixed versions.Source: mozilla.org

What should I do about it?

Upgrade to Firefox 67.0.4, Firefox ESR 60.7.2, or Thunderbird 60.7.2, depending on the product in use.Source: mozilla.org

Is it being exploited?

Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2022-05-23, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data