CRITICAL · 9.8

CVE-2017-5390

The JSON viewer in the Developer Tools uses insecure methods to create a communication channel for copying and viewing JSON or HTTP headers data, allowing for potential privilege escalation. This vuln...

Vulnerability Description

The JSON viewer in the Developer Tools uses insecure methods to create a communication channel for copying and viewing JSON or HTTP headers data, allowing for potential privilege escalation. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
DebianDebian Linux8.0
RedhatEnterprise Linux5.0
RedhatEnterprise Linux Desktop5.0
RedhatEnterprise Linux Server5.0
RedhatEnterprise Linux Server Aus7.3
RedhatEnterprise Linux Server Eus7.3
RedhatEnterprise Linux Workstation5.0
MozillaThunderbird< 45.7.0
MozillaFirefox< 51.0

References

FAQ

What is CVE-2017-5390?

CVE-2017-5390 is a vulnerability with a CVSS score of 9.8 (CRITICAL). The JSON viewer in the Developer Tools uses insecure methods to create a communication channel for copying and viewing JSON or HTTP headers data, allowing for potential privilege escalation. This vuln...

How severe is CVE-2017-5390?

CVE-2017-5390 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2017-5390?

Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus.