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ubuntucveUbuntu.comUB:CVE-2020-15673
HistorySep 25, 2020 - 12:00 a.m.

CVE-2020-15673

2020-09-2500:00:00
ubuntu.com
ubuntu.com
16
mozilla
memory safety
memory corruption
arbitrary code
vulnerability
firefox 81
thunderbird 78.3
firefox esr 78.3

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

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

EPSS

0.005

Percentile

76.7%

JSON

Mozilla developers reported memory safety bugs present in Firefox 80 and
Firefox ESR 78.2. Some of these bugs showed evidence of memory corruption
and we presume that with enough effort some of these could have been
exploited to run arbitrary code. This vulnerability affects Firefox < 81,
Thunderbird < 78.3, and Firefox ESR < 78.3.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 81.0+build2-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchfirefox< 81.0+build2-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
ubuntu21.04noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
ubuntu24.04noarchfirefox< 81.0+build2-0ubuntu1UNKNOWN
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CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

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

EPSS

0.005

Percentile

76.7%

JSON
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