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ubuntucveUbuntu.comUB:CVE-2020-26974
HistoryDec 15, 2020 - 12:00 a.m.

CVE-2020-26974

2020-12-1500:00:00
ubuntu.com
ubuntu.com
11

6.8 Medium

CVSS2

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

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

0.004 Low

EPSS

Percentile

72.8%

JSON

When flex-basis was used on a table wrapper, a StyleGenericFlexBasis object
could have been incorrectly cast to the wrong type. This resulted in a heap
user-after-free, memory corruption, and a potentially exploitable crash.
This vulnerability affects Firefox < 84, Thunderbird < 78.6, and Firefox
ESR < 78.6.

Notes

Author Note
tyhicks mozjs contains a copy of the SpiderMonkey JavaScript engine
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchfirefox< 84.0+build3-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchfirefox< 84.0+build3-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchfirefox< 84.0+build3-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchfirefox< 84.0+build3-0ubuntu2UNKNOWN
ubuntu21.10noarchfirefox< 84.0+build3-0ubuntu2UNKNOWN
ubuntu22.04noarchfirefox< 84.0+build3-0ubuntu2UNKNOWN
ubuntu22.10noarchfirefox< 84.0+build3-0ubuntu2UNKNOWN
ubuntu23.04noarchfirefox< 84.0+build3-0ubuntu2UNKNOWN
ubuntu23.10noarchfirefox< 84.0+build3-0ubuntu2UNKNOWN
ubuntu24.04noarchfirefox< 84.0+build3-0ubuntu2UNKNOWN
Rows per page:
1-10 of 261

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6.8 Medium

CVSS2

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

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

0.004 Low

EPSS

Percentile

72.8%

JSON
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