CVE-2017-5454

High

Description

A mechanism to bypass file system access protections in the sandbox to use the file picker to access different files than those selected in the file picker through the use of relative paths. This allows for read only access to the local file system. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

SeverityHigh
CVSS7.5
Exploit probability—
ProductMozilla Firefox
PublishedJun 11, 2018
First seenJun 11, 2018

How to fix

Update
  • mozilla firefox53.0, 52.1.0 or later
  • mozilla thunderbird52.1.0 or later

Affected products

ProductAffected versionsFixed in
mozilla firefoxv < 53.0, v < 52.1.053.0, 52.1.0
redhat enterprise_linux6.0, 7.0—
redhat enterprise_linux_desktop6.0, 7.0—
redhat enterprise_linux_server6.0, 7.0—
redhat enterprise_linux_server_aus7.3, 7.4—
redhat enterprise_linux_server_eus7.3, 7.4, 7.5—
redhat enterprise_linux_workstation6.0, 7.0—
mozilla thunderbirdv < 52.1.052.1.0

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