CVE-2018-4416Icloud Memory Corruption
Multiple memory corruption issues were addressed with improved memory handling.
Published Apr 3, 2019 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2018-4416, UBUNTU-CVE-2018-4416
Key Facts
Patch immediately- CVE-2018-4416 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Icloud (Apple), Itunes (Apple), Safari (Apple) and 22 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 35% probability of exploitation in the next 30 days.
- Fixed versions are available, including Icloud 7.8, Iphone OS 12.1, Itunes 12.9.1.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3.1
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
35%
Higher than 98.4% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
43/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
Description
Multiple memory corruption issues were addressed with improved memory handling. 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.
Affected Products
143 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| IcloudApple | See advisory | 7.8 |
| ItunesApple | See advisory | 12.9.1 |
| SafariApple | See advisory | 12.0.1 |
| Iphone OSApple | See advisory | 12.1 |
| TvosApple | See advisory | 12.1 |
Patched Releases
Icloud
7.8
Iphone OS
12.1
Itunes
12.9.1
Safari
12.0.1
Tvos
12.1
Watchos
5.1
libjavascriptcoregtk-4_0-18
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
libjavascriptcoregtk-4_0-18-32bit
2.22.4-15.1, 2.22.5-lp150.2.9.1
libwebkit2gtk-4_0-37
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
libwebkit2gtk-4_0-37-32bit
2.22.4-15.1, 2.22.5-lp150.2.9.1
libwebkit2gtk3-lang
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
typelib-1_0-JavaScriptCore-4_0
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
typelib-1_0-WebKit2-4_0
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
typelib-1_0-WebKit2WebExtension-4_0
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
webkit-jsc-4
2.22.4-15.1, 2.22.5-lp150.2.9.1
webkit2gtk
2.22.1-1
webkit2gtk-4_0-injected-bundles
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
webkit2gtk3
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1
webkit2gtk3-devel
2.22.4-15.1, 2.22.4-2.29.3, 2.22.5-3.13.1, 2.22.5-lp150.2.9.1
webkit2gtk3-minibrowser
2.22.4-15.1, 2.22.5-lp150.2.9.1
webkit2gtk3-plugin-process-gtk2
2.22.4-15.1, 2.22.5-lp150.2.9.1
Timeline
Publicly disclosed
Apr 3, 2019
Last updated
Aug 4, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisorysecurity-tracker.debian.org · CVE-2018-4416
- advisoryubuntu.com · CVE-2018-4416
- advisorycve.org · CVERecord
- advisorybugzilla.suse.com · 1110279
- advisorybugzilla.suse.com · 1116998
FAQ
Common Questions.
Multiple memory corruption issues were addressed with improved memory handling.
Affected: Icloud (Apple); Itunes (Apple); Safari (Apple), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Icloud 7.8, Iphone OS 12.1, Itunes 12.9.1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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