CVE-2018-5163

Summary

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.

Affected Software

VendorProductVersion RangeStatus
MozillaFirefoxunspecified < 60affected

Weaknesses

  • Replacing cached data in JavaScript Start-up Bytecode Cache

ADP Enrichment

CVE Program Container

Additional References

References