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Ubuntu: (Multiple Advisories) (CVE-2018-5163): Firefox regression

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Ubuntu: (Multiple Advisories) (CVE-2018-5163): Firefox regression

Severity
5
CVSS
(AV:N/AC:H/Au:N/C:P/I:P/A:P)
Published
05/09/2018
Created
07/25/2018
Added
05/22/2018
Modified
03/02/2020

Description

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.

Solution(s)

  • ubuntu-upgrade-firefox

References

  • USN-3645-1
  • USN-3645-2
  • CVE-2018-5163

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