CVE-2018-5118

Medium

Description

The screenshot images displayed in the Activity Stream page displayed when a new tab is opened is created from the meta tags of websites. An issue was discovered where the page could attempt to create these images through "file:" URLs from the local file system. This loading is blocked by the sandbox but could expose local data if combined with another attack that escapes sandbox protections. This vulnerability affects Firefox < 58.

SeverityMedium
CVSS5.3
Exploit probability—
ProductMozilla Firefox
PublishedJun 11, 2018
First seenJun 11, 2018

How to fix

Vendor advisories

Affected products

ProductAffected versionsFixed in
mozilla firefoxv ≤ 57.0.4—
canonical ubuntu_linux14.04, 16.04, 17.10—

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