CVE-2020-3856
XPC Memory Disclosure / Corruption
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
A memory corruption issue was addressed with improved input validation. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. Processing a maliciously crafted string may lead to heap corruption.
Se abordó un problema de corrupción de memoria con una comprobación de entrada mejorada. Este problema es corregido en iOS versión 13.3.1 y iPadOS versión 13.3.1, macOS Catalina versión 10.15.3, tvOS versión 13.3.1, watchOS versión 6.1.2. El procesamiento de una cadena diseñada maliciosamente puede conllevar a una corrupción de la pila.
XPC fast path fails to ensure NULL termination of XPC strings, leading to memory disclosure and corruption vulnerabilities in XPC services.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-12-18 CVE Reserved
- 2020-01-29 CVE Published
- 2024-01-01 EPSS Updated
- 2024-08-04 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
- CWE-787: Out-of-bounds Write
CAPEC
References (4)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://support.apple.com/HT210918 | 2021-07-21 | |
| https://support.apple.com/HT210919 | 2021-07-21 | |
| https://support.apple.com/HT210920 | 2021-07-21 | |
| https://support.apple.com/HT210921 | 2021-07-21 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Apple Search vendor "Apple" | Ipados Search vendor "Apple" for product "Ipados" | < 13.3.1 Search vendor "Apple" for product "Ipados" and version " < 13.3.1" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Iphone Os Search vendor "Apple" for product "Iphone Os" | < 13.3.1 Search vendor "Apple" for product "Iphone Os" and version " < 13.3.1" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Mac Os X Search vendor "Apple" for product "Mac Os X" | < 10.15.3 Search vendor "Apple" for product "Mac Os X" and version " < 10.15.3" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Tvos Search vendor "Apple" for product "Tvos" | < 13.3.1 Search vendor "Apple" for product "Tvos" and version " < 13.3.1" | - |
Affected
| ||||||
| Apple Search vendor "Apple" | Watchos Search vendor "Apple" for product "Watchos" | < 6.1.2 Search vendor "Apple" for product "Watchos" and version " < 6.1.2" | - |
Affected
| ||||||