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ubuntucveUbuntu.comUB:CVE-2020-26968
HistoryNov 17, 2020 - 12:00 a.m.

CVE-2020-26968

2020-11-1700:00:00
ubuntu.com
ubuntu.com
22

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

75.3%

JSON

Mozilla developers reported memory safety bugs present in Firefox 82 and
Firefox ESR 78.4. 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 < 83,
Firefox ESR < 78.5, and Thunderbird < 78.5.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 83.0+build2-0ubuntu0.18.04.2UNKNOWN
ubuntu20.04noarchfirefox< 83.0+build2-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 83.0+build2-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchfirefox< 83.0+build2-0ubuntu1UNKNOWN
ubuntu21.10noarchfirefox< 83.0+build2-0ubuntu1UNKNOWN
ubuntu22.04noarchfirefox< 83.0+build2-0ubuntu1UNKNOWN
ubuntu22.10noarchfirefox< 83.0+build2-0ubuntu1UNKNOWN
ubuntu23.04noarchfirefox< 83.0+build2-0ubuntu1UNKNOWN
ubuntu23.10noarchfirefox< 83.0+build2-0ubuntu1UNKNOWN
ubuntu16.04noarchfirefox< 83.0+build2-0ubuntu0.16.04.3UNKNOWN
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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

75.3%

JSON
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