Buffer overflow in Apple Icloud
CVE-2020-3911
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…
Vulnerability class: Buffer Overflow
EPSS: 0.016 (73.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apple Icloud
- Apple Icloud For Windows — versions unspecified
- Apple Icloud For Windows (Legacy) — versions unspecified
- Apple Ios — versions unspecified
- Apple Ipados
- Apple Iphone_os
- Apple Itunes
- Apple Itunes For Windows — versions unspecified
- Apple Macos — versions unspecified
- Apple Mac_os_x
Weakness classification (CWE)
Public proof-of-concept exploits
References
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
- product-security@apple.com (x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3911?
- CVE-2020-3911 is a critical-severity vulnerability in Apple Icloud, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2020-04-01.
- How severe is CVE-2020-3911?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-3911 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.