Incorrect Permission Assignment for Critical Resource Affecting firefox package, versions <53.0+build6-0ubuntu0.16.04.1
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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- published11 Jun 2018
- disclosed11 Jun 2018
Introduced: 11 Jun 2018
CVE-2017-5456 (opens in a new tab)How to fix?
Upgrade Ubuntu:16.04 firefox to version 53.0+build6-0ubuntu0.16.04.1 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.
A mechanism to bypass file system access protections in the sandbox using the file system request constructor through an IPC message. This allows for read and write access to the local file system. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-5456
- https://security-tracker.debian.org/tracker/CVE-2017-5456
- https://www.mozilla.org/security/advisories/mfsa2017-10/
- https://www.mozilla.org/security/advisories/mfsa2017-12/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1344415
- https://access.redhat.com/errata/RHSA-2017:1106
- http://www.securityfocus.com/bid/97940
- http://www.securitytracker.com/id/1038320