Input validation error in Mozilla Firefox - CVE-2020-12390
Published: May 5, 2020
Vulnerability identifier: #VU27533
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-12390
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox
Mozilla Firefox
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass certain security restrictions.
The vulnerability exists due to incorrect origin serialization of nsIPrincipal.origin for IPv6 addresses. A remote attacker can bypass implemented security restrictions with a specially crafted URL.
How to mitigate CVE-2020-12390
Install updates from vendor's website.