CVE-2019-11708: Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
CVE-2019-11708 · Severity: critical · CVSS 10 · Exploited in the wild · Published 2022-05-23
Insufficient vetting of parameters in the Prompt:Open IPC message between child and parent processes allows a compromised child process to force the non-sandboxed parent process to open arbitrary web content. When chained with other vulnerabilities, this enables a sandbox escape and remote code execution on the host system.
Yes. CVE-2019-11708 is known to be exploited in the wild, first recorded on 23 May 2022. Treat it as urgent.
How severe is CVE-2019-11708?
Critical severity, with a CVSS score of 10, published 23 May 2022.
Which products and versions are affected?
Mozilla Firefox < 67.0.4; Mozilla Firefox ESR < 60.7.2; Mozilla Thunderbird < 60.7.2.
Is there a fix for CVE-2019-11708?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2019-11708 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2019-11708?
Check whether you run Mozilla Firefox or Mozilla Thunderbird. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Mozilla Firefox < 67.0.4
Mozilla Firefox ESR < 60.7.2
Mozilla Thunderbird < 60.7.2
Timeline
2019-07-28: disclosed: Initial NVD analysis date
2022-05-23: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2022-05-23: advisory: NVD publication date
2019-12-09: other: Public exploit chain for Windows 64-bit reported