Home/CVE/An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.
CVE

CVE-2020-9849

An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.

An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, iOS 14.0 and iPadOS 14.0, iTunes for Windows 12.10.9, iCloud for Windows 11.5, tvOS 14.0. A remote attacker may be able to leak memory.

MEDIUM · CVSS 6.5 EPSS 0.01069
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules8 YARA rules0
⬡

Weakness Classification

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
▤

Affected Products & Versions

6
apple icloud< 11.5
apple itunes>= 12.0.0 and < 12.10.9
apple ipados< 14.0
apple macos< 11.0.1
apple tvos< 14.0
apple watchos< 7.0
◈

Sigma Hunt Rules

8
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSuspicious Microsoft Office Child Process - MacOS
producthighRemote Access Tool - Renamed MeshAgent Execution - MacOS
producthighBinary Padding - MacOS
productmediumSuspicious Execution via macOS Script Editor
productmediumSystem Information Discovery Via Sysctl - MacOS
productmediumNew File Exclusion Added To Time Machine Via Tmutil - MacOS
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · product-security@apple.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Dec 2020 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://seclists.org/fulldisclosure/2020/Dec/32Mailing ListThird Party Advisory
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
https://support.apple.com/en-us/HT211843Release NotesVendor Advisory
https://support.apple.com/en-us/HT211844Release NotesVendor Advisory
https://support.apple.com/en-us/HT211850Release NotesVendor Advisory
https://support.apple.com/en-us/HT211931Release NotesVendor Advisory
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