firefox: If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able...
CVE-2018-5163 is fixed in 4 products on 1 platform, first by firefox 60.0+build2-0ubuntu1, released May 10, 2018. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| firefox · Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | firefox 60.0+build2-0ubuntu1 | May 10, 2018 |
| firefox-globalmenu · Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | firefox-globalmenu 60.0+build2-0ubuntu1 | May 10, 2018 |
| firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | firefox-mozsymbols 60.0+build2-0ubuntu1 | May 10, 2018 |
| firefox-testsuite · Ubuntu 18.04.6 LTS (bionic) | 60.0+build2-0ubuntu1 | firefox-testsuite 60.0+build2-0ubuntu1 | May 10, 2018 |
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