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ubuntucveUbuntu.comUB:CVE-2020-15656
HistoryJul 29, 2020 - 12:00 a.m.

CVE-2020-15656

2020-07-2900:00:00
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

0.005 Low

EPSS

Percentile

75.0%

JSON

JIT optimizations involving the Javascript arguments object could confuse
later optimizations. This risk was already mitigated by various precautions
in the code, resulting in this bug rated at only moderate severity. This
vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird <
78.1.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 79.0+build1-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchfirefox< 79.0+build1-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 80.0.1+build1-0ubuntu1UNKNOWN
ubuntu21.04noarchfirefox< 80.0.1+build1-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 80.0.1+build1-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 80.0.1+build1-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 80.0.1+build1-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 80.0.1+build1-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 80.0.1+build1-0ubuntu1UNKNOWN
ubuntu24.04noarchfirefox< 80.0.1+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

0.005 Low

EPSS

Percentile

75.0%

JSON
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