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TI-2019-06124 Aliases CVE-2019-8547GHSA-v34h-4f6h-chj2

Out-of-bounds read in Apple iOS

Priority MEDIUM 46CWE-125Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

An out-of-bounds read issue existed that led to the disclosure of kernel memory. This 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, watchOS 5.2, macOS Mojave 10.14.4, Security Update 2019-002 High Sierra, Security Update 2019-002 Sierra, iOS 12.2. A remote attacker may be able to leak memory.

Why it matters now

EPSS 0.02299 83rd percentileScored 2026-11-07
Fix Fixed iOS (Apple): 12.2macOS (Apple): 10.14, 5.2

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOSbefore 12.212.2Patch availableCNA
ApplemacOSbefore 10.1410.14Patch availableCNA
ApplemacOSbefore 5.25.2Patch availableCNA
ApplemacOSbefore 10.1410.14Patch availableCNA
  • iOS VendorApple Affected before 12.2 Fixed in 12.2 Patch available CNA
  • macOS VendorApple Affected before 10.14 Fixed in 10.14 Patch available CNA
  • macOS VendorApple Affected before 5.2 Fixed in 5.2 Patch available CNA
  • macOS VendorApple Affected before 10.14 Fixed in 10.14 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 12.2VulnerableApple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*10.12.6 to before 10.14.5VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 5.2VulnerableApple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*10.14.3 to before 10.14.4VulnerableApple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 12.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.12.6 to before 10.14.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 5.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.14.3 to before 10.14.4 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS (Apple) Fixed in 12.2
  • Fix · CNA macOS (Apple) Fixed in 10.14
  • Fix · CNA macOS (Apple) Fixed in 5.2
  • Fix · CNA macOS (Apple) Fixed in 10.14

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-2019-05178 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
    • TI-2019-06109 Improper certificate validation in Apple iOSPriority MEDIUM 43
    Show all 33 records →
  • Release ·

    Apple iOS 12.2

    9 records Highest priority Priority MEDIUM 4 MEDIUM, 5 LOW

    Other records, highest priority first

    • TI-2019-06109 Improper certificate validation in Apple iOSPriority MEDIUM 43
    • TI-2019-06211 Out-of-bounds write in Apple iOSPriority MEDIUM 41
    • TI-2019-06210 Out-of-bounds write in Apple iOSPriority MEDIUM 41
    Show all 9 records →
Show 1 more group
  • Release ·

    Apple macOS 5.2

    9 records Highest priority Priority MEDIUM 2 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2019-06109 Improper certificate validation in Apple iOSPriority MEDIUM 43
    • TI-2019-06168 Improper input validation in Apple iOSPriority LOW 37
    • TI-2019-06149 Improper input validation in Apple iOSPriority LOW 36
    Show all 9 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-8547
  2. 2026-10-03 Alias added: GHSA-v34h-4f6h-chj2

References

Advisory 4

  • 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
See all 4500 →

Sources

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