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ubuntucveUbuntu.comUB:CVE-2021-30734
HistoryJul 27, 2021 - 12:00 a.m.

CVE-2021-30734

2021-07-2700:00:00
ubuntu.com
ubuntu.com
18

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

0.003

Percentile

71.5%

JSON

Multiple memory corruption issues were addressed with improved memory
handling. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6,
Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. 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< 2.32.3-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchwebkit2gtk< 2.32.3-0ubuntu0.20.04.1UNKNOWN
ubuntu21.04noarchwebkit2gtk< 2.32.3-0ubuntu0.21.04.1UNKNOWN
ubuntu21.10noarchwebkit2gtk< 2.32.3-1ubuntu1UNKNOWN
ubuntu22.04noarchwebkit2gtk< 2.32.3-1ubuntu1UNKNOWN
ubuntu22.10noarchwebkit2gtk< 2.32.3-1ubuntu1UNKNOWN
ubuntu23.04noarchwebkit2gtk< 2.32.3-1ubuntu1UNKNOWN
ubuntu23.10noarchwebkit2gtk< 2.32.3-1ubuntu1UNKNOWN
ubuntu24.04noarchwebkit2gtk< 2.32.3-1ubuntu1UNKNOWN

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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

0.003

Percentile

71.5%

JSON
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