CVE-2017-7842

firefox: If a document's Referrer Policy attribute is set to "no-referrer" sometimes two network requests are made for "<li...

CVE-2017-7842 is fixed in 4 products on 1 platform, first by firefox 57.0.1+build2-0ubuntu1, released June 11, 2018. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
n/a
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0151
74th percentile

If a document's Referrer Policy attribute is set to "no-referrer" sometimes two network requests are made for "<link>" elements instead of one. One of these requests includes the referrer instead of respecting the set policy to not include a referrer on requests. This vulnerability affects Firefox < 57.

Where it's fixed

ProductFixed inFixReleased
Linux
firefox · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox 57.0.1+build2-0ubuntu1 Jun 11, 2018
firefox-globalmenu · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox-globalmenu 57.0.1+build2-0ubuntu1 Jun 11, 2018
firefox-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox-mozsymbols 57.0.1+build2-0ubuntu1 Jun 11, 2018
firefox-testsuite · Ubuntu 18.04.6 LTS (bionic) 57.0.1+build2-0ubuntu1 firefox-testsuite 57.0.1+build2-0ubuntu1 Jun 11, 2018