CVE-2018-18495

2018-12-1100:00:00

ubuntu.com

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

0.003 Low

EPSS

Percentile

65.2%

JSON

WebExtension content scripts can be loaded into about: pages in some
circumstances, in violation of the permissions granted to extensions. This
could allow an extension to interfere with the loading and usage of these
pages and use capabilities that were intended to be restricted from
extensions. This vulnerability affects Firefox < 64.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 64.0+build3-0ubuntu0.18.04.1UNKNOWN
ubuntu18.10noarchfirefox< 64.0+build3-0ubuntu0.18.10.1UNKNOWN
ubuntu14.04noarchfirefox< 64.0+build3-0ubuntu0.14.04.1UNKNOWN
ubuntu16.04noarchfirefox< 64.0+build3-0ubuntu0.16.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	firefox	< 64.0+build3-0ubuntu0.18.04.1	UNKNOWN
ubuntu	18.10	noarch	firefox	< 64.0+build3-0ubuntu0.18.10.1	UNKNOWN
ubuntu	14.04	noarch	firefox	< 64.0+build3-0ubuntu0.14.04.1	UNKNOWN
ubuntu	16.04	noarch	firefox	< 64.0+build3-0ubuntu0.16.04.1	UNKNOWN