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ubuntucveUbuntu.comUB:CVE-2020-6813
HistoryMar 11, 2020 - 12:00 a.m.

CVE-2020-6813

2020-03-1100:00:00
ubuntu.com
ubuntu.com
10

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

35.2%

When protecting CSS blocks with the nonce feature of Content Security
Policy, the @import statement in the CSS block could allow an attacker to
inject arbitrary styles, bypassing the intent of the Content Security
Policy. This vulnerability affects Firefox < 74.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 74.0+build3-0ubuntu0.18.04.1UNKNOWN
ubuntu19.10noarchfirefox< 74.0+build3-0ubuntu0.19.10.1UNKNOWN
ubuntu20.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu20.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu21.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 74.0+build3-0ubuntu1UNKNOWN
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5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

35.2%