Home/CVE/An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS
CVE

CVE-2020-9943

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.0, tvOS 14.0, iOS 14.0 and iPadOS 14.0. A malicious application may be able to read restricted memory.

MEDIUM · CVSS 5.5 EPSS 0.00302
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
▤

Affected Products & Versions

8
apple ipados< 14.0
apple iphone os< 14.0
apple mac os x< 11.0.1
apple mac os x>= 10.14 and < 10.14.6
apple mac os x>= 10.15 and < 10.15.7
apple mac os xall versions
apple tvos< 14.0
apple watchos< 7.0
▣

Scoring & Timeline

5.5
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:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
🔗

References & Sources

7
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/26Mailing ListThird Party Advisory
http://seclists.org/fulldisclosure/2020/Dec/32Mailing ListThird Party Advisory
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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