PublicDateAtUSN: 2017-10-02
Candidate: CVE-2017-7823
PublicDate: 2018-06-11 21:29:00 UTC
References: 
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7823
 https://www.mozilla.org/en-US/security/advisories/mfsa2017-21/
 https://ubuntu.com/security/notices/USN-3435-1
 https://ubuntu.com/security/notices/USN-3436-1
Description:
 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.
Ubuntu-Description: 
Notes: 
Bugs: 
Priority: medium
Discovered-by:
Assigned-to: chrisccoulson
CVSS:
 nvd: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N [5.4 MEDIUM]

Patches_firefox: 
upstream_firefox: released (56.0)
precise/esm_firefox: DNE
trusty_firefox: released (56.0+build6-0ubuntu0.14.04.1)
trusty/esm_firefox: DNE (trusty was released [56.0+build6-0ubuntu0.14.04.1])
vivid/ubuntu-core_firefox: DNE
xenial_firefox: released (56.0+build6-0ubuntu0.16.04.1)
esm-infra/xenial_firefox: released (56.0+build6-0ubuntu0.16.04.1)
zesty_firefox: released (56.0+build6-0ubuntu0.17.04.1)
artful_firefox: released (56.0+build6-0ubuntu1)
bionic_firefox: released (56.0+build6-0ubuntu1)
devel_firefox: released (56.0+build6-0ubuntu1)

Patches_thunderbird:
Priority_thunderbird: low
upstream_thunderbird: released (52.4.0)
precise/esm_thunderbird: DNE
trusty_thunderbird: released (1:52.4.0+build1-0ubuntu0.14.04.2)
trusty/esm_thunderbird: DNE (trusty was released [1:52.4.0+build1-0ubuntu0.14.04.2])
vivid/ubuntu-core_thunderbird: DNE
xenial_thunderbird: released (1:52.4.0+build1-0ubuntu0.16.04.2)
esm-infra/xenial_thunderbird: released (1:52.4.0+build1-0ubuntu0.16.04.2)
zesty_thunderbird: released (1:52.4.0+build1-0ubuntu0.17.04.2)
artful_thunderbird: released (1:52.4.0+build1-0ubuntu2)
bionic_thunderbird: released (1:52.4.0+build1-0ubuntu2)
devel_thunderbird: released (1:52.4.0+build1-0ubuntu2)