Home/CVE/A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Ca
CVE

CVE-2020-3909

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Ca

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 13.4 and iPadOS 13.4, macOS Catalina 10.15.4, tvOS 13.4, watchOS 6.2, iTunes for Windows 12.10.5, iCloud for Windows 10.9.3, iCloud for Windows 7.18. Multiple issues in libxml2.

CRITICAL · CVSS 9.8 EPSS 0.02593
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

9
apple icloud< 7.18
apple icloud>= 10.9 and < 10.9.3
apple itunes< 12.10.5
apple ipados< 13.4
apple iphone os< 13.4
apple mac os x< 10.15.4
apple tvos< 13.4
apple watchos< 6.2
▣

Scoring & Timeline

9.8
CRITICAL · 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 NVD01 Apr 2020 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.apple.com/HT211100Vendor Advisory
https://support.apple.com/HT211101Vendor Advisory
https://support.apple.com/HT211102Vendor Advisory
https://support.apple.com/HT211103Vendor Advisory
https://support.apple.com/HT211105Vendor Advisory
https://support.apple.com/HT211106Vendor Advisory
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