Improper input validation in Apple iOS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An input validation issue was addressed with improved input validation. This issue is fixed in macOS Mojave 10.14.5, Security Update 2019-003 High Sierra, Security Update 2019-003 Sierra, iOS 12.3, watchOS 5.2.1. A remote attacker may be able to cause a system denial of service.
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 12.3 | 12.3 | Patch available | CNA |
| Apple | macOS | before 10.14 | 10.14 | Patch available | CNA |
| Apple | macOS | before 5.2 | 5.2 | Patch available | CNA |
Remediation
- Fix · CNA iOS (Apple) Fixed in 12.3
- Fix · CNA macOS (Apple) Fixed in 10.14
- Fix · CNA macOS (Apple) Fixed in 5.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 10.14
33 records Highest priority Priority MEDIUM 6 MEDIUM, 27 LOW
Other records, highest priority first
- TI-2019-06124 Out-of-bounds read in Apple iOSPriority MEDIUM 46
- TI-2019-05178 Apple iOS: A thorough security audit of the FaceTime service uncovered an issue with Live…Priority MEDIUM 45
- TI-2018-03247 This issue is fixed in macOS Mojave 10.14.Priority MEDIUM 44
- Release ·
Apple macOS 5.2
9 records Highest priority Priority MEDIUM 2 MEDIUM, 7 LOW
Other records, highest priority first
- TI-2019-06124 Out-of-bounds read in Apple iOSPriority MEDIUM 46
- TI-2019-06109 Improper certificate validation in Apple iOSPriority MEDIUM 43
- TI-2019-06168 Improper input validation in Apple iOSPriority LOW 37
Show 1 more group
- Release ·
Apple iOS 12.3
6 records Highest priority Priority LOW 6 LOW
Other records, highest priority first
- TI-2019-06168 Improper input validation in Apple iOSPriority LOW 37
- TI-2019-06206 Improper input validation in Apple iOSPriority LOW 35
- TI-2019-06204 Apple iOS: Users removed from an iMessage conversation may still be able to alter statePriority LOW 35
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8573
- 2026-10-03 Alias added: GHSA-ff6q-c9g5-7xw7
References
More Apple Iphone Os vulnerabilities
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-8573 · CVE Program
- CVE-2019-8573 · NVD
- FIRST EPSS
- GHSA-ff6q-c9g5-7xw7 · 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