CVE-2020-3909 — CRITICAL (9.8)

Q: How severe is CVE-2020-3909?

CVE-2020-3909 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2020-3909?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Icloud, Apple Itunes, Apple Ipados, Apple Iphone Os, Apple Mac Os X.

Vulnerability Description

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.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apple	Icloud	< 7.18
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
Oracle	Sun Zfs Storage Appliance Kit Software	8.8

Related Weaknesses (CWE)

CWE-120

References

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
https://support.apple.com/HT211107Vendor Advisory
https://www.oracle.com/security-alerts/cpuoct2020.htmlThird Party Advisory
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
https://support.apple.com/HT211107Vendor Advisory

FAQ

What is CVE-2020-3909?

CVE-2020-3909 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 W...

How severe is CVE-2020-3909?

CVE-2020-3909 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2020-3909?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Icloud, Apple Itunes, Apple Ipados, Apple Iphone Os, Apple Mac Os X.