CVE-2018-5114

Description

If an existing cookie is changed to be "HttpOnly" while a document is open, the original value remains accessible through script until that document is closed. Network requests correctly use the changed HttpOnly cookie. This vulnerability affects Firefox < 58.

Category

5.3
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.46%
Vendor Advisory ubuntu.com Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1040270 third party advisory vdb entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1421324 issue tracking permissions required
https://usn.ubuntu.com/3544-1/ third party advisory vendor advisory
http://www.securityfocus.com/bid/102786 third party advisory vdb entry
https://www.mozilla.org/security/advisories/mfsa2018-02/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-5114?
CVE-2018-5114 has been scored as a medium severity vulnerability.
How to fix CVE-2018-5114?
To fix CVE-2018-5114, 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-2018-5114 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-5114 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-2018-5114?
CVE-2018-5114 affects Mozilla Firefox.
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