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ubuntucveUbuntu.comUB:CVE-2020-12406
HistoryJun 02, 2020 - 12:00 a.m.

CVE-2020-12406

2020-06-0200:00:00
ubuntu.com
ubuntu.com
9

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.003 Low

EPSS

Percentile

67.3%

Mozilla Developer Iain Ireland discovered a missing type check during
unboxed objects removal, resulting in a crash. We presume that with enough
effort that it could be exploited to run arbitrary code. This vulnerability
affects Thunderbird < 68.9.0, Firefox < 77, and Firefox ESR < 68.9.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 77.0.1+build1-0ubuntu0.18.04.1UNKNOWN
ubuntu19.10noarchfirefox< 77.0.1+build1-0ubuntu0.19.10.1UNKNOWN
ubuntu20.04noarchfirefox< 77.0.1+build1-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 77.0.1+build1-0ubuntu1UNKNOWN
ubuntu21.04noarchfirefox< 77.0.1+build1-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 77.0.1+build1-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 77.0.1+build1-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 77.0.1+build1-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 77.0.1+build1-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 77.0.1+build1-0ubuntu1UNKNOWN
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8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.003 Low

EPSS

Percentile

67.3%