Information disclosure in Apple Iphone OS
CVE-2018-4431
A memory initialization issue was addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.007 (52.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000
Affected products
- Apple Iphone OS
- Apple Mac OS X
- Apple tvOS
- Apple watchOS
- iOS, macOS, tvOS, watchOS — versions Versions prior to: iOS 12.1.1, macOS Mojave 10.14.2, tvOS 12.1.1, watchOS 5.1.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support.apple.com/kb/HT209343 (Vendor Advisory)
- support.apple.com/kb/HT209342 (Vendor Advisory)
- support.apple.com/kb/HT209340 (Vendor Advisory)
- support.apple.com/kb/HT209341 (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-4431?
- CVE-2018-4431 is a medium-severity vulnerability in Apple Iphone OS, classified under Information Disclosure. CVSS score: 5.5/10. Published 2019-04-03.
- How severe is CVE-2018-4431?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2018-4431 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.