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ubuntucveUbuntu.comUB:CVE-2020-15681
HistoryOct 22, 2020 - 12:00 a.m.

CVE-2020-15681

2020-10-2200:00:00
ubuntu.com
ubuntu.com
8

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

41.1%

When multiple WASM threads had a reference to a module, and were looking up
exported functions, one WASM thread could have overwritten another’s entry
in a shared stub table, resulting in a potentially exploitable crash. This
vulnerability affects Firefox < 82.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 82.0+build2-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchfirefox< 82.0+build2-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 82.0+build2-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
ubuntu24.04noarchfirefox< 82.0.2+build1-0ubuntu1UNKNOWN
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5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

41.1%