CVE-2020-9883

Apple macOS CoreGraphics JBIG2Stream Out-Of-Bounds Read Information Disclosure Vulnerability

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 buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6, tvOS 13.4.8, watchOS 6.2.8, iTunes 12.10.8 for Windows, iCloud for Windows 11.3, iCloud for Windows 7.20. Processing a maliciously crafted image may lead to arbitrary code execution.

Se abordó un problema de desbordamiento del búfer con un manejo de la memoria mejorada. Este problema es corregido en iOS versión 13.6 y iPadOS versión 13.6, macOS Catalina versión 10.15.6, tvOS versión 13.4.8, watchOS versión 6.2.8, iTunes versión 12.10.8 para Windows, iCloud para Windows versión 11.3, iCloud para Windows versión 7.20. El procesamiento de una imagen diseñada maliciosamente puede conllevar a una ejecución de código arbitraria

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Apple macOS. Interaction with the CoreGraphics library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.
The specific flaw exists within the JBIG2Stream::readGenericBitmap method. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process.

*Credits: Mickey Jin of Trend Micro Mobile Security Research Team

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

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

2020-03-02 CVE Reserved
2020-10-22 CVE Published
2024-08-04 CVE Updated
2024-10-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (10)

URL	Tag	Source
http://seclists.org/fulldisclosure/2020/Dec/32	Mailing List
https://www.zerodayinitiative.com/advisories/ZDI-20-1389	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.apple.com/kb/HT211288	2023-01-09
https://support.apple.com/kb/HT211289	2023-01-09
https://support.apple.com/kb/HT211290	2023-01-09
https://support.apple.com/kb/HT211291	2023-01-09
https://support.apple.com/kb/HT211293	2023-01-09
https://support.apple.com/kb/HT211294	2023-01-09
https://support.apple.com/kb/HT211295	2023-01-09
https://support.apple.com/kb/HT211931	2023-01-09

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"				< 7.20 Search vendor "Apple" for product "Icloud" and version " < 7.20"		windows		Affected
Apple Search vendor "Apple"		Icloud Search vendor "Apple" for product "Icloud"				>= 10.0 < 11.3 Search vendor "Apple" for product "Icloud" and version " >= 10.0 < 11.3"		windows		Affected
Apple Search vendor "Apple"		Itunes Search vendor "Apple" for product "Itunes"				< 12.10.8 Search vendor "Apple" for product "Itunes" and version " < 12.10.8"		windows		Affected
Apple Search vendor "Apple"		Ipados Search vendor "Apple" for product "Ipados"				< 13.6 Search vendor "Apple" for product "Ipados" and version " < 13.6"		-		Affected
Apple Search vendor "Apple"		Iphone Os Search vendor "Apple" for product "Iphone Os"				< 13.6 Search vendor "Apple" for product "Iphone Os" and version " < 13.6"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				>= 10.13 < 10.13.6 Search vendor "Apple" for product "Mac Os X" and version " >= 10.13 < 10.13.6"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				>= 10.14 < 10.14.6 Search vendor "Apple" for product "Mac Os X" and version " >= 10.14 < 10.14.6"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				>= 10.15 < 10.15.6 Search vendor "Apple" for product "Mac Os X" and version " >= 10.15 < 10.15.6"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2018-002		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2018-003		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2019-001		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2019-002		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2019-003		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2019-004		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2019-005		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2019-006		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2019-007		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2020-001		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2020-002		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.13.6 Search vendor "Apple" for product "Mac Os X" and version "10.13.6"		security_update_2020-003		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		-		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2019-001		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2019-002		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2019-004		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2019-005		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2019-006		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2019-007		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2020-001		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2020-002		Affected
Apple Search vendor "Apple"		Mac Os X Search vendor "Apple" for product "Mac Os X"				10.14.6 Search vendor "Apple" for product "Mac Os X" and version "10.14.6"		security_update_2020-003		Affected
Apple Search vendor "Apple"		Macos Search vendor "Apple" for product "Macos"				>= 11.0 < 11.0.1 Search vendor "Apple" for product "Macos" and version " >= 11.0 < 11.0.1"		-		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"				< 13.4.8 Search vendor "Apple" for product "Tvos" and version " < 13.4.8"		-		Affected
Apple Search vendor "Apple"		Watchos Search vendor "Apple" for product "Watchos"				< 6.2.8 Search vendor "Apple" for product "Watchos" and version " < 6.2.8"		-		Affected