Information Exposure Affecting firefox package, versions <51.0.1+build2-0ubuntu0.16.04.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-FIREFOX-422117
- published11 Jun 2018
- disclosed11 Jun 2018
Introduced: 11 Jun 2018
CVE-2017-5384 (opens in a new tab)How to fix?
Upgrade Ubuntu:16.04 firefox to version 51.0.1+build2-0ubuntu0.16.04.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Ubuntu.
See How to fix? for Ubuntu:16.04 relevant fixed versions and status.
Proxy Auto-Config (PAC) files can specify a JavaScript function called for all URL requests with the full URL path which exposes more information than would be sent to the proxy itself in the case of HTTPS. Normally the Proxy Auto-Config file is specified by the user or machine owner and presumed to be non-malicious, but if a user has enabled Web Proxy Auto Detect (WPAD) this file can be served remotely. This vulnerability affects Firefox < 51.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-5384
- https://security-tracker.debian.org/tracker/CVE-2017-5384
- https://www.contextis.com//resources/blog/leaking-https-urls-20-year-old-vulnerability/
- https://www.mozilla.org/security/advisories/mfsa2017-01/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1255474
- http://www.securityfocus.com/bid/95763
- http://www.securitytracker.com/id/1037693