CVE-2017-7844

Publication date 11 June 2018

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

Description

A combination of an external SVG image referenced on a page and the coloring of anchor links stored within this image can be used to determine which pages a user has in their history. This can allow a malicious website to query user history. Note: This issue only affects Firefox 57. Earlier releases are not affected. This vulnerability affects Firefox < 57.0.1.

Status

Package Ubuntu Release Status
firefox 18.04 LTS bionic
Fixed 57.0.1+build2-0ubuntu1
17.10 artful
Fixed 57.0.1+build2-0ubuntu0.17.10.1
17.04 zesty
Fixed 57.0.1+build2-0ubuntu0.17.04.1
16.04 LTS xenial
Fixed 57.0.1+build2-0ubuntu0.16.04.1
14.04 LTS trusty
Fixed 57.0.1+build2-0ubuntu0.14.04.1

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

References

Other references