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ubuntucveUbuntu.comUB:CVE-2021-1844
HistoryApr 02, 2021 - 12:00 a.m.

CVE-2021-1844

2021-04-0200:00:00
ubuntu.com
ubuntu.com
20

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

0.002

Percentile

60.0%

JSON

A memory corruption issue was addressed with improved validation. This
issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v.
14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3.
Processing maliciously crafted web content may lead to arbitrary code
execution.

Notes

Author Note
jdstrand webkit receives limited support. For details, see https://wiki.ubuntu.com/SecurityTeam/FAQ#webkit webkit in Ubuntu uses the JavaScriptCore (JSC) engine, not V8
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchwebkit2gtk< 2.32.0-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchwebkit2gtk< 2.32.0-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchwebkit2gtk< 2.32.0-0ubuntu0.20.10.1UNKNOWN
ubuntu21.04noarchwebkit2gtk< 2.32.0-1ubuntu3UNKNOWN
ubuntu21.10noarchwebkit2gtk< 2.32.0-1ubuntu3UNKNOWN
ubuntu22.04noarchwebkit2gtk< 2.32.0-1ubuntu3UNKNOWN
ubuntu22.10noarchwebkit2gtk< 2.32.0-1ubuntu3UNKNOWN
ubuntu23.04noarchwebkit2gtk< 2.32.0-1ubuntu3UNKNOWN
ubuntu23.10noarchwebkit2gtk< 2.32.0-1ubuntu3UNKNOWN
ubuntu24.04noarchwebkit2gtk< 2.32.0-1ubuntu3UNKNOWN

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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

0.002

Percentile

60.0%

JSON
Related for UB:CVE-2021-1844
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