Buffer overflow in Apple Icloud
CVE-2018-4378
A memory corruption issue was addressed with improved validation. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.015 (72.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 72.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Apple Icloud
- Apple Iphone OS
- Apple Itunes
- Apple Safari
- Apple tvOS
- Apple watchOS
- Microsoft Windows
- iOS, tvOS, watchOS, Safari, Itunes For Windows, Icloud Windows — versions Versions prior to: iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/kb/HT209192 (Vendor Advisory)
- support.apple.com/kb/HT209195 (Vendor Advisory)
- support.apple.com/kb/HT209194 (Vendor Advisory)
- support.apple.com/kb/HT209197 (Vendor Advisory)
- support.apple.com/kb/HT209198 (Vendor Advisory)
- support.apple.com/kb/HT209196 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-4378?
- CVE-2018-4378 is a high-severity vulnerability in Apple Icloud, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 8.8/10. Published 2019-04-03.
- How severe is CVE-2018-4378?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-4378 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.