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ubuntucveUbuntu.comUB:CVE-2021-30799
HistoryJul 27, 2021 - 12:00 a.m.

CVE-2021-30799

2021-07-2700:00:00
ubuntu.com
ubuntu.com
27

9.3 High

CVSS2

Attack Vector

NETWORK

Attack 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

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

75.1%

Multiple memory corruption issues were addressed with improved memory
handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, Security
Update 2021-004 Catalina, Security Update 2021-005 Mojave. 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

9.3 High

CVSS2

Attack Vector

NETWORK

Attack 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

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

75.1%