CVE-2021-30934

2021-12-3100:00:00

ubuntu.com

CVSS2

9.3

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

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

0.005

Percentile

76.0%

JSON

A buffer overflow issue was addressed with improved memory handling. This
issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and
iPadOS 15.2, watchOS 8.3. 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
ubuntu20.04noarchwebkit2gtk< 2.34.4-0ubuntu0.20.04.1UNKNOWN
ubuntu21.10noarchwebkit2gtk< 2.34.4-0ubuntu0.21.10.1UNKNOWN
ubuntu22.04noarchwebkit2gtk< 2.35.2-1UNKNOWN
ubuntu22.10noarchwebkit2gtk< 2.35.2-1UNKNOWN
ubuntu23.04noarchwebkit2gtk< 2.35.2-1UNKNOWN
ubuntu23.10noarchwebkit2gtk< 2.35.2-1UNKNOWN
ubuntu24.04noarchwebkit2gtk< 2.35.2-1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	webkit2gtk	< 2.34.4-0ubuntu0.20.04.1	UNKNOWN
ubuntu	21.10	noarch	webkit2gtk	< 2.34.4-0ubuntu0.21.10.1	UNKNOWN
ubuntu	22.04	noarch	webkit2gtk	< 2.35.2-1	UNKNOWN
ubuntu	22.10	noarch	webkit2gtk	< 2.35.2-1	UNKNOWN
ubuntu	23.04	noarch	webkit2gtk	< 2.35.2-1	UNKNOWN
ubuntu	23.10	noarch	webkit2gtk	< 2.35.2-1	UNKNOWN
ubuntu	24.04	noarch	webkit2gtk	< 2.35.2-1	UNKNOWN