CVE-2016-2817

NameCVE-2016-2817
DescriptionThe WebExtension sandbox feature in browser/components/extensions/ext-tabs.js in Mozilla Firefox before 46.0 does not properly restrict principal inheritance during chrome.tabs.create and chrome.tabs.update API calls, which allows remote attackers to conduct Universal XSS (UXSS) attacks via a crafted extension that accesses a (1) javascript: or (2) data: URL.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firefox (PTS)sid73.0.1-1fixed
firefox-esr (PTS)jessie52.8.1esr-1~deb8u1fixed
jessie (security)68.5.0esr-1~deb8u1fixed
stretch68.4.1esr-1~deb9u1fixed
stretch (security)68.5.0esr-1~deb9u1fixed
buster68.4.1esr-1~deb10u1fixed
buster (security)68.5.0esr-1~deb10u1fixed
bullseye, sid68.5.0esr-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firefoxsource(unstable)46.0-1
firefox-esrsource(unstable)(not affected)
iceweaselsource(unstable)(not affected)

Notes

- iceweasel <not-affected> (Only Firefox 46)
- firefox-esr <not-affected> (Only Firefox 46)
https://www.mozilla.org/en-US/security/advisories/mfsa2016-46/

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