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Ubuntu: (Multiple Advisories) (CVE-2017-7813): Firefox regression

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Ubuntu: (Multiple Advisories) (CVE-2017-7813): Firefox regression

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
09/28/2017
Created
07/25/2018
Added
10/03/2017
Modified
03/02/2020

Description

Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer being parsed. This usually results in a non-exploitable crash, but can leak a limited amount of information from memory if it matches JavaScript identifier syntax. This vulnerability affects Firefox < 56.

Solution(s)

  • ubuntu-upgrade-firefox

References

  • USN-3435-1
  • USN-3435-2
  • CVE-2017-7813

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