CVE-2017-5422

Public Exploit

Description

If a malicious site uses the "view-source:" protocol in a series within a single hyperlink, it can trigger a non-exploitable browser crash when the hyperlink is selected. This was fixed by no longer making "view-source:" linkable. This vulnerability affects Firefox < 52 and Thunderbird < 52.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 3.05% 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://bugzilla.mozilla.org/show_bug.cgi?id=1295002 issue tracking patch vendor advisory exploit
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

Frequently Asked Questions

What is the severity of CVE-2017-5422?
CVE-2017-5422 has been scored as a high severity vulnerability.
How to fix CVE-2017-5422?
To fix CVE-2017-5422, 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-2017-5422 being actively exploited in the wild?
It is possible that CVE-2017-5422 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2017-5422?
CVE-2017-5422 affects Mozilla Firefox, Mozilla Thunderbird.
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