Uncontrolled resource consumption in Apple iOS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
A memory consumption issue was addressed with improved memory handling. This issue is fixed in iCloud for Windows 7.7, watchOS 5, Safari 12, iOS 12, iTunes 12.9 for Windows, tvOS 12. Unexpected interaction causes an ASSERT failure.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apple | iOS | before 12 | 12 | Patch available | CNA |
| Apple | tvOS | before 12 | 12 | Patch available | CNA |
| Apple | watchOS | before 5 | 5 | Patch available | CNA |
| Apple | Safari | before 12 | 12 | Patch available | CNA |
| Apple | iTunes for Windows | before 12.9 | 12.9 | Patch available | CNA |
| Apple | iCloud for Windows | before 7.7 | 7.7 | Patch available | CNA |
- iOS VendorApple Affected before 12 Fixed in 12 Patch available CNA
- tvOS VendorApple Affected before 12 Fixed in 12 Patch available CNA
- watchOS VendorApple Affected before 5 Fixed in 5 Patch available CNA
- Safari VendorApple Affected before 12 Fixed in 12 Patch available CNA
- iTunes for Windows VendorApple Affected before 12.9 Fixed in 12.9 Patch available CNA
- iCloud for Windows VendorApple Affected before 7.7 Fixed in 7.7 Patch available CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* | before 7.7 | Vulnerable | Apple |
| cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* | before 12.9 | Vulnerable | Apple |
| cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* | before 12 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 12.0 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 12 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 5.0 | Vulnerable | Apple |
- cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* Versions before 7.7 Vulnerable ·Apple
- cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* Versions before 12.9 Vulnerable ·Apple
- cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 12 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 12.0 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 12 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 5.0 Vulnerable ·Apple
Remediation
- Fix · CNA iOS (Apple) Fixed in 12
- Fix · CNA tvOS (Apple) Fixed in 12
- Fix · CNA watchOS (Apple) Fixed in 5
- Fix · CNA Safari (Apple) Fixed in 12
- Fix · CNA iTunes for Windows (Apple) Fixed in 12.9
- Fix · CNA iCloud for Windows (Apple) Fixed in 7.7
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple iTunes for Windows 12.9
5 records Highest priority Priority MEDIUM 2 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2019-06211 Out-of-bounds write in Apple iOSPriority MEDIUM 41
- TI-2019-06210 Out-of-bounds write in Apple iOSPriority MEDIUM 41
- TI-2019-06146 Apple iOS: Processing maliciously crafted web content may disclose sensitive user…Priority LOW 34
- Release ·
Apple iOS, tvOS, watchOS 12, 5
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2018-03377 Apple iOS: A malicious application may be able to modify protected parts of the file…Priority LOW 26
Timeline
- 2026-10-02 Threatist record created from CVE-2018-4474
- 2026-10-03 Alias added: GHSA-jr79-gh2g-m9rv
References
More Apple Icloud vulnerabilities
- TI-2019-06084 Type confusion in Apple iOS KEVCVSS 3.1HIGH 8.8
- TI-2020-16987 Type confusion in Apple watchOS KEVCVSS 3.1HIGH 7.8
- TI-2020-07926 Apple iOS: A remote attacker may be able to cause arbitrary code execution CVSS 3.1CRITICAL 9.8
- TI-2018-03187 Memory corruption in Apple WebKit CVSS 3.1HIGH 8.8
- TI-2018-03118 Memory corruption in Apple WebKit CVSS 3.0HIGH 8.8
- TI-2018-03361 Memory corruption in iOS, tvOS, watchOS, Safari, iTunes for Windows, iCloud for Windows CVSS 3.0HIGH 8.8
Sources
- CVE-2018-4474 · CVE Program
- CVE-2018-4474 · NVD
- FIRST EPSS
- GHSA-jr79-gh2g-m9rv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences