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ubuntucveUbuntu.comUB:CVE-2020-26960
HistoryNov 17, 2020 - 12:00 a.m.

CVE-2020-26960

2020-11-1700:00:00
ubuntu.com
ubuntu.com
15

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

0.002 Low

EPSS

Percentile

64.3%

JSON

If the Compact() method was called on an nsTArray, the array could have
been reallocated without updating other pointers, leading to a potential
use-after-free and exploitable crash. 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
ubuntu24.04noarchfirefox< 83.0+build2-0ubuntu1UNKNOWN
Rows per page:
1-10 of 251

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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

0.002 Low

EPSS

Percentile

64.3%

JSON
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