CVE-2017-7834

A "data:" URL loaded in a new tab did not inherit the Content Security Policy (CSP) of the original page, allowing for bypasses of the policy including the execution of JavaScript. In prior versions when "data:" documents also inherited the context of the original page this would allow for potential cross-site scripting (XSS) attacks. This vulnerability affects Firefox < 57.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
mozillaCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 75%
VendorProductVersion
mozillafirefox
𝑥
≤ 56.0.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
firefox
sid
132.0.1-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
firefox
bionic
Fixed 57.0.1+build2-0ubuntu1
released
artful
Fixed 57.0+build4-0ubuntu0.17.10.5
released
zesty
Fixed 57.0+build4-0ubuntu0.17.04.5
released
xenial
Fixed 57.0+build4-0ubuntu0.16.04.5
released
trusty
Fixed 57.0+build4-0ubuntu0.14.04.4
released
Common Weakness Enumeration
References
http://www.securityfocus.com/bid/101832
http://www.securitytracker.com/id/1039803
https://bugzilla.mozilla.org/show_bug.cgi?id=1358009
https://www.mozilla.org/security/advisories/mfsa2017-24/
http://www.securityfocus.com/bid/101832
http://www.securitytracker.com/id/1039803
https://bugzilla.mozilla.org/show_bug.cgi?id=1358009
https://www.mozilla.org/security/advisories/mfsa2017-24/