Out-of-bounds Read in Apple Icloud
CVE-2020-3878
An out-of-bounds read was addressed with improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. Processing a maliciously crafted image may lead to arbitrary code execution.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.094 (95.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.094 · newest: 0.094 · change: 0.000
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 — versions 10.13.6, 10.14.6
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/HT211168 (Vendor Advisory)
- support.apple.com/HT211170 (Vendor Advisory)
- support.apple.com/HT211171 (Vendor Advisory)
- support.apple.com/HT211175 (Vendor Advisory)
- support.apple.com/HT211178 (Vendor Advisory)
- support.apple.com/HT211179 (Vendor Advisory)
- support.apple.com/HT211181 (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3878?
- CVE-2020-3878 is a high-severity vulnerability in Apple Icloud, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2020-02-27.
- How severe is CVE-2020-3878?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-3878 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.