CVE-2020-27918

webkitgtk: Use-after-free leading to arbitrary code execution

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.

Se abordó un problema de uso de la memoria previamente liberada, con una administración de la memoria mejorada. Este problema se corrigió en macOS Big Sur versión 11.0.1, watchOS versión 7.1, iOS versión 14.2 y iPadOS versión 14.2, iCloud para Windows versión 11.5, Safari versión 14.0.1, tvOS versión 14.2, iTunes versión 12.11 para Windows. El procesamiento de contenido web diseñado maliciosamente puede conllevar a una ejecución de código arbitraria

A use-after-free issue was found in WebKitGTK and WPE WebKit in versions prior to 2.30.6. Processing maliciously crafted web content may lead to arbitrary code execution. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-10-27 CVE Reserved
2020-11-09 CVE Published
2024-08-04 CVE Updated
2024-11-14 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-416: Use After Free

CAPEC

References (16)

URL	Tag	Source
http://seclists.org/fulldisclosure/2020/Dec/32	Mailing List
http://www.openwall.com/lists/oss-security/2021/03/22/1	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EQ3U3VBSOJB46WCO66TEWE5OAXLTU3YW	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN6ZOD62CTO54CHTMJTHVEF6R2Y532TJ	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU	2023-11-07
https://security.gentoo.org/glsa/202104-03	2023-11-07
https://support.apple.com/en-us/HT211928	2023-11-07
https://support.apple.com/en-us/HT211929	2023-11-07
https://support.apple.com/en-us/HT211930	2023-11-07
https://support.apple.com/en-us/HT211931	2023-11-07
https://support.apple.com/en-us/HT211933	2023-11-07
https://support.apple.com/en-us/HT211934	2023-11-07
https://support.apple.com/en-us/HT211935	2023-11-07
https://www.debian.org/security/2021/dsa-4877	2023-11-07
https://access.redhat.com/security/cve/CVE-2020-27918	2021-11-09
https://bugzilla.redhat.com/show_bug.cgi?id=1944323	2021-11-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apple Search vendor "Apple"		Icloud Search vendor "Apple" for product "Icloud"				< 11.5 Search vendor "Apple" for product "Icloud" and version " < 11.5"		windows		Affected
Apple Search vendor "Apple"		Itunes Search vendor "Apple" for product "Itunes"				< 12.11 Search vendor "Apple" for product "Itunes" and version " < 12.11"		windows		Affected
Apple Search vendor "Apple"		Safari Search vendor "Apple" for product "Safari"				< 14.0.1 Search vendor "Apple" for product "Safari" and version " < 14.0.1"		-		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 14.2 Search vendor "Apple" for product "Ipados" and version " < 14.2"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 14.2 Search vendor "Apple" for product "Iphone Os" and version " < 14.2"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				< 11.0.1 Search vendor "Apple" for product "Macos" and version " < 11.0.1"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 14.2 Search vendor "Apple" for product "Tvos" and version " < 14.2"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 7.1 Search vendor "Apple" for product "Watchos" and version " < 7.1"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				32 Search vendor "Fedoraproject" for product "Fedora" and version "32"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected
Webkitgtk Search vendor "Webkitgtk"		Webkitgtk\+ Search vendor "Webkitgtk" for product "Webkitgtk\+"				< 2.30.6 Search vendor "Webkitgtk" for product "Webkitgtk\+" and version " < 2.30.6"		-		Affected