CVE-2021-1844

webkitgtk: Memory corruption issue leading to arbitrary code execution

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Se abordó un problema de corrupción de memoria con una comprobación mejorada. Este problema es corregido en iOS versión 14.4.1 y iPadOS versión 14.4.1, Safari versión 14.0.3 (versiones v.14610.4.3.1.7 y 15610.4.3.1.7), watchOS versión 7.3.2, macOS Big Sur versión 11.2.3. El procesamiento de contenido web diseñado malicioso puede conllevar a una ejecución de código arbitraria.

A memory corruption issue was found in WebKitGTK and WPE WebKit in versions prior to 2.32.0. 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

Network

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

2020-12-08 CVE Reserved
2021-03-09 CVE Published
2023-12-17 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787: Out-of-bounds Write

CAPEC

References (10)

URL	Tag	Source
http://seclists.org/fulldisclosure/2021/Apr/55	Mailing List

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L3L6ZZOU5JS7E3RFYGLP7UFLXCG7TNLU	2023-11-07
https://support.apple.com/en-us/HT212220	2023-11-07
https://support.apple.com/en-us/HT212221	2023-11-07
https://support.apple.com/en-us/HT212222	2023-11-07
https://support.apple.com/en-us/HT212223	2023-11-07
https://support.apple.com/kb/HT212323	2023-11-07
https://www.debian.org/security/2021/dsa-4923	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-1844	2021-11-09
https://bugzilla.redhat.com/show_bug.cgi?id=1944862	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"		Safari Search vendor "Apple" for product "Safari"				< 14.0.3 Search vendor "Apple" for product "Safari" and version " < 14.0.3"		-		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 14.4.1 Search vendor "Apple" for product "Ipados" and version " < 14.4.1"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 14.4.1 Search vendor "Apple" for product "Iphone Os" and version " < 14.4.1"		-		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				< 11.2.3 Search vendor "Apple" for product "Macos" and version " < 11.2.3"		-		Affected
Apple Search vendor "Apple"		Tvos Search vendor "Apple" for product "Tvos"				< 14.5 Search vendor "Apple" for product "Tvos" and version " < 14.5"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 7.3.2 Search vendor "Apple" for product "Watchos" and version " < 7.3.2"		-		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
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected