CVE-2017-5416

Public Exploit

Description

In certain circumstances a networking event listener can be prematurely released. This appears to result in a null dereference in practice. This vulnerability affects Firefox < 52 and Thunderbird < 52.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.53% Top 15%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2017-09/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2017-05/ vendor advisory
http://www.securitytracker.com/id/1037966 vdb entry third party advisory
http://www.securityfocus.com/bid/96692 vdb entry third party advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1328121 issue tracking exploit vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-5416?
CVE-2017-5416 has been scored as a high severity vulnerability.
How to fix CVE-2017-5416?
To fix CVE-2017-5416, 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-2017-5416 being actively exploited in the wild?
It is possible that CVE-2017-5416 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~4% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5416?
CVE-2017-5416 affects Mozilla Firefox, Mozilla Thunderbird.
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