If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.
Advisories
Source ID Title
EUVD EUVD EUVD-2018-16948 If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.
Ubuntu USN Ubuntu USN USN-3645-1 Firefox vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2024-08-05T05:26:47.037Z

Reserved: 2018-01-03T00:00:00

Link: CVE-2018-5163

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2018-06-11T21:29:15.517

Modified: 2024-11-21T04:08:14.797

Link: CVE-2018-5163

cve-icon Redhat

Severity : Moderate

Publid Date: 2018-05-09T00:00:00Z

Links: CVE-2018-5163 - Bugzilla

cve-icon OpenCVE Enrichment

No data.