CVE-2016-5293

Description

When the Mozilla Updater is run, if the Updater's log file in the working directory points to a hardlink, data can be appended to an arbitrary local file. This vulnerability requires local system access. Note: this issue only affects Windows operating systems. This vulnerability affects Firefox ESR < 45.5 and Firefox < 50.

Category

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.10%
Vendor Advisory gentoo.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox ESR
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1246945 issue tracking
http://www.securitytracker.com/id/1037298 vdb entry third party advisory
https://security.gentoo.org/glsa/201701-15 third party advisory vendor advisory
http://www.securityfocus.com/bid/94336 vdb entry third party advisory
https://www.mozilla.org/security/advisories/mfsa2016-89/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2016-90/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-5293?
CVE-2016-5293 has been scored as a medium severity vulnerability.
How to fix CVE-2016-5293?
To fix CVE-2016-5293, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-5293 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-5293 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2016-5293?
CVE-2016-5293 affects Mozilla Firefox ESR, Mozilla Firefox.
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