CVE-2020-9948

2020-11-2400:00:00

ubuntu.com

safari 14.0

type confusion

memory handling

arbitrary code execution

web content

javascriptcore engine

security issue

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

60.2%

JSON

A type confusion issue was addressed with improved memory handling. This
issue is fixed in Safari 14.0. 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< 2.30.3-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchwebkit2gtk< 2.30.3-0ubuntu0.20.04.1UNKNOWN