TI-2019-06133 Aliases CVE-2019-8556 GHSA-pgv5-pw9f-4x5j

Use after free in Apple iOS

MEDIUM 41CWE-416Published 2019-12-18 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 12.2, tvOS 12.2, Safari 12.1, iTunes 12.9.4 for Windows, iCloud for Windows 7.11. Processing maliciously crafted web content may lead to arbitrary code execution.

Why it matters now

EPSS 0.0142 72nd percentileScored 2026-11-07

Fix Fixed iOS (Apple): iOS 12.2tvOS (Apple): tvOS 12.2+3 more products

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 iOS 12.2	iOS 12.2	Patch available	CNA
Apple	tvOS	before tvOS 12.2	tvOS 12.2	Patch available	CNA
Apple	Safari	before Safari 12.1	Safari 12.1	Patch available	CNA
Apple	iTunes for Windows	before iTunes 12.9.4 for Windows	iTunes 12.9.4 for Windows	Patch available	CNA
Apple	iCloud for Windows	before iCloud for Windows 7.11	iCloud for Windows 7.11	Patch available	CNA

iOS VendorApple Affected before iOS 12.2 Fixed in iOS 12.2 Patch available CNA
tvOS VendorApple Affected before tvOS 12.2 Fixed in tvOS 12.2 Patch available CNA
Safari VendorApple Affected before Safari 12.1 Fixed in Safari 12.1 Patch available CNA
iTunes for Windows VendorApple Affected before iTunes 12.9.4 for Windows Fixed in iTunes 12.9.4 for Windows Patch available CNA
iCloud for Windows VendorApple Affected before iCloud for Windows 7.11 Fixed in iCloud for Windows 7.11 Patch available CNA

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:a:apple:icloud::::::windows::*	before 7.11	Vulnerable	Apple
cpe:2.3:a:apple:itunes::::::windows::*	before 12.9.4	Vulnerable	Apple
cpe:2.3:a:apple:safari::::::::	before 12.1	Vulnerable	Apple
cpe:2.3:o:apple:iphone_os::::::::	before 12.2	Vulnerable	Apple
cpe:2.3:o:apple:tvos::::::::	before 12.2	Vulnerable	Apple

cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* Versions before 7.11 Vulnerable ·Apple
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* Versions before 12.9.4 Vulnerable ·Apple
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 12.1 Vulnerable ·Apple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 12.2 Vulnerable ·Apple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 12.2 Vulnerable ·Apple

Remediation

Fix · CNA iOS (Apple) Fixed in iOS 12.2
Fix · CNA tvOS (Apple) Fixed in tvOS 12.2
Fix · CNA Safari (Apple) Fixed in Safari 12.1
Fix · CNA iTunes for Windows (Apple) Fixed in iTunes 12.9.4 for Windows
Fix · CNA iCloud for Windows (Apple) Fixed in iCloud for Windows 7.11

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2019-12-18
Apple iOS iOS 12.2
49 records Highest priority Priority CRITICAL 1 CRITICAL, 18 MEDIUM, 30 LOW
Other records, highest priority first
- TI-2019-06084 Type confusion in Apple iOSPriority CRITICAL 97
- TI-2019-06096 Out-of-bounds write in Apple iOSPriority MEDIUM 51
- TI-2019-06134 Out-of-bounds write in Apple iOSPriority MEDIUM 48
Show all 49 records →
Release · 2019-12-18
Apple tvOS tvOS 12.2
33 records Highest priority Priority CRITICAL 1 CRITICAL, 17 MEDIUM, 15 LOW
Other records, highest priority first
- TI-2019-06084 Type confusion in Apple iOSPriority CRITICAL 97
- TI-2019-06096 Out-of-bounds write in Apple iOSPriority MEDIUM 51
- TI-2019-06134 Out-of-bounds write in Apple iOSPriority MEDIUM 48
Show all 33 records →

Show 3 more groups

Release · 2019-12-18
Apple iCloud for Windows iCloud for Windows 7.11
20 records Highest priority Priority CRITICAL 1 CRITICAL, 13 MEDIUM, 6 LOW
Other records, highest priority first
- TI-2019-06084 Type confusion in Apple iOSPriority CRITICAL 97
- TI-2019-06096 Out-of-bounds write in Apple iOSPriority MEDIUM 51
- TI-2019-06134 Out-of-bounds write in Apple iOSPriority MEDIUM 48
Show all 20 records →
Release · 2019-12-18
Apple Safari Safari 12.1
20 records Highest priority Priority CRITICAL 1 CRITICAL, 14 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2019-06084 Type confusion in Apple iOSPriority CRITICAL 97
- TI-2019-06096 Out-of-bounds write in Apple iOSPriority MEDIUM 51
- TI-2019-06134 Out-of-bounds write in Apple iOSPriority MEDIUM 48
Show all 20 records →
Release · 2019-12-18
Apple iTunes for Windows iTunes 12.9.4 for Windows
19 records Highest priority Priority CRITICAL 1 CRITICAL, 14 MEDIUM, 4 LOW
Other records, highest priority first
- TI-2019-06084 Type confusion in Apple iOSPriority CRITICAL 97
- TI-2019-06096 Out-of-bounds write in Apple iOSPriority MEDIUM 51
- TI-2019-06134 Out-of-bounds write in Apple iOSPriority MEDIUM 48
Show all 19 records →

Timeline

2026-10-02 Threatist record created from CVE-2019-8556
2026-10-03 Alias added: GHSA-pgv5-pw9f-4x5j

References

Advisory 5

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

See all 448 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences