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CVE-2017-7803

Published: 10 August 2017

When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.

Notes

AuthorNote
tyhicks
mozjs38 contains a copy of the SpiderMonkey JavaScript engine

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
artful
Released (55.0.2+build1-0ubuntu4)
bionic
Released (55.0.2+build1-0ubuntu4)
cosmic
Released (55.0.2+build1-0ubuntu4)
disco
Released (55.0.2+build1-0ubuntu4)
trusty
Released (55.0.1+build2-0ubuntu0.14.04.2)
upstream
Released (55.0)
xenial
Released (55.0.1+build2-0ubuntu0.16.04.2)
zesty
Released (55.0.1+build2-0ubuntu0.17.04.2)
mozjs38
Launchpad, Ubuntu, Debian
artful Ignored
(end of life)
bionic Not vulnerable
(code not present)
cosmic Does not exist

disco Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

zesty Ignored
(end of life)
thunderbird
Launchpad, Ubuntu, Debian
artful
Released (1:52.4.0+build1-0ubuntu2)
bionic
Released (1:52.4.0+build1-0ubuntu2)
cosmic
Released (1:52.4.0+build1-0ubuntu2)
disco
Released (1:52.4.0+build1-0ubuntu2)
trusty
Released (1:52.3.0+build1-0ubuntu0.14.04.1)
upstream
Released (52.3.0)
xenial
Released (1:52.3.0+build1-0ubuntu0.16.04.1)
zesty
Released (1:52.3.0+build1-0ubuntu0.17.04.1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N