CVE-2017-7823

firefox: The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to...

CVE-2017-7823 is fixed in 12 products on 1 platform, first by firefox 56.0+build6-0ubuntu1, released October 1, 2017. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0144
73rd percentile

The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Where it's fixed

ProductFixed inFixReleased
Linux
firefox · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox 56.0+build6-0ubuntu1 Oct 1, 2017
firefox-globalmenu · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox-globalmenu 56.0+build6-0ubuntu1 Oct 1, 2017
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox-mozsymbols 56.0+build6-0ubuntu1 Oct 1, 2017
firefox-testsuite · Ubuntu 18.04.6 LTS (bionic) 56.0+build6-0ubuntu1 firefox-testsuite 56.0+build6-0ubuntu1 Oct 1, 2017
thunderbird · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 thunderbird 1:52.4.0+build1-0ubuntu2 Oct 1, 2017
thunderbird-globalmenu · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 thunderbird-globalmenu 1:52.4.0+build1-0ubuntu2 Oct 1, 2017
thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 thunderbird-gnome-support 1:52.4.0+build1-0ubuntu2 Oct 1, 2017
thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 thunderbird-mozsymbols 1:52.4.0+build1-0ubuntu2 Oct 1, 2017
thunderbird-testsuite · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 thunderbird-testsuite 1:52.4.0+build1-0ubuntu2 Oct 1, 2017
xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 xul-ext-calendar-timezones 1:52.4.0+build1-0ubuntu2 Oct 1, 2017
xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 xul-ext-gdata-provider 1:52.4.0+build1-0ubuntu2 Oct 1, 2017
xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) 1:52.4.0+build1-0ubuntu2 xul-ext-lightning 1:52.4.0+build1-0ubuntu2 Oct 1, 2017