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TI-2019-06233 Aliases CVE-2019-8666GHSA-35q5-r29v-56m2

Out-of-bounds write in Apple iOS

Priority MEDIUM 42CWE-787Published · Updated

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
Partial Red Hat: 11 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 12.4, macOS Mojave 10.14.6, tvOS 12.4, Safari 12.1.2, iTunes for Windows 12.9.6, iCloud for Windows 7.13, iCloud for Windows 10.6. Processing maliciously crafted web content may lead to arbitrary code execution.

Why it matters now

EPSS 0.01797 78th percentileScored 2026-11-07
Fix Partial iOS (Apple): iOS 12.4macOS (Apple): macOS Mojave 10.14.6+5 more productsRed Hat: 2 advisoriesRed Hat: 11 fixed, 2 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOSbefore iOS 12.4iOS 12.4Patch availableCNA
ApplemacOSbefore macOS Mojave 10.14.6macOS Mojave 10.14.6Patch availableCNA
AppletvOSbefore tvOS 12.4tvOS 12.4Patch availableCNA
AppleSafaribefore Safari 12.1.2Safari 12.1.2Patch availableCNA
AppleiTunes for Windowsbefore iTunes for Windows 12.9.6iTunes for Windows 12.9.6Patch availableCNA
AppleiCloud for Windowsbefore iCloud for Windows 7.13iCloud for Windows 7.13Patch availableCNA
AppleiCloud for Windows (Microsoft Store)before iCloud for Windows 10.6iCloud for Windows 10.6Patch availableCNA
  • iOS VendorApple Affected before iOS 12.4 Fixed in iOS 12.4 Patch available CNA
  • macOS VendorApple Affected before macOS Mojave 10.14.6 Fixed in macOS Mojave 10.14.6 Patch available CNA
  • tvOS VendorApple Affected before tvOS 12.4 Fixed in tvOS 12.4 Patch available CNA
  • Safari VendorApple Affected before Safari 12.1.2 Fixed in Safari 12.1.2 Patch available CNA
  • iTunes for Windows VendorApple Affected before iTunes for Windows 12.9.6 Fixed in iTunes for Windows 12.9.6 Patch available CNA
  • iCloud for Windows VendorApple Affected before iCloud for Windows 7.13 Fixed in iCloud for Windows 7.13 Patch available CNA
  • iCloud for Windows (Microsoft Store) VendorApple Affected before iCloud for Windows 10.6 Fixed in iCloud for Windows 10.6 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*before 7.13; 10.0 to before 10.6VulnerableApple
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*before 12.9.6VulnerableApple
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*before 12.1.2VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 12.4VulnerableApple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*before 10.14.6VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 12.4VulnerableApple
  • cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* Versions before 7.13; 10.0 to before 10.6 Vulnerable ·Apple
  • cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* Versions before 12.9.6 Vulnerable ·Apple
  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 12.1.2 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 12.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions before 10.14.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 12.4 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS (Apple) Fixed in iOS 12.4
  • Fix · CNA macOS (Apple) Fixed in macOS Mojave 10.14.6
  • Fix · CNA tvOS (Apple) Fixed in tvOS 12.4
  • Fix · CNA Safari (Apple) Fixed in Safari 12.1.2
  • Fix · CNA iTunes for Windows (Apple) Fixed in iTunes for Windows 12.9.6
  • Fix · CNA iCloud for Windows (Apple) Fixed in iCloud for Windows 7.13
  • Fix · CNA iCloud for Windows (Microsoft Store) (Apple) Fixed in iCloud for Windows 10.6

Red Hat 2 advisories

  • RHSA-2020:4035 Released 2020-09-29 · Red Hat rating Moderate
    webkitgtk4 security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-jsc-2.28.2-2.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-doc-2.28.2-2.el7, webkitgtk4-jsc-devel-2.28.2-2.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-jsc-2.28.2-2.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-doc-2.28.2-2.el7, webkitgtk4-jsc-devel-2.28.2-2.el7
    • Red Hat Enterprise Linux Server (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-2.28.2-2.el7.ppc, webkitgtk4-devel-2.28.2-2.el7 +3
    • Red Hat Enterprise Linux Server Optional (v. 7) webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-devel-2.28.2-2.el7.ppc, webkitgtk4-doc-2.28.2-2.el7 +2
    • Red Hat Enterprise Linux Workstation (v. 7) webkitgtk4-2.28.2-2.el7, webkitgtk4-devel-2.28.2-2.el7, webkitgtk4-jsc-2.28.2-2.el7 +1
    • Red Hat Enterprise Linux Workstation Optional (v. 7) webkitgtk4-doc-2.28.2-2.el7
  • RHSA-2019:3553 Released 2019-11-05 · Red Hat rating Low
    GNOME security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) accountsservice-devel-0.6.50-7.el8, gdk-pixbuf2-xlib-2.36.12-5.el8, gdk-pixbuf2-xlib-devel-2.36.12-5.el8 +8
    • Red Hat Enterprise Linux AppStream (v. 8) SDL-1.2.15-35.el8, SDL-devel-1.2.15-35.el8, accountsservice-0.6.50-7.el8 +47
    • Red Hat Enterprise Linux BaseOS (v. 8) gdk-pixbuf2-2.36.12-5.el8, gsettings-desktop-schemas-3.32.0-3.el8, mozjs60-60.9.0-3.el8

Fixed in the same release

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

  • Release ·

    Apple macOS macOS Mojave 10.14.6

    37 records Highest priority Priority MEDIUM 25 MEDIUM, 12 LOW

    Other records, highest priority first

    Show all 37 records →
  • Release ·

    Apple iOS iOS 12.4

    33 records Highest priority Priority MEDIUM 25 MEDIUM, 8 LOW

    Other records, highest priority first

    Show all 33 records →
Show 3 more groups
  • Release ·

    Apple tvOS tvOS 12.4

    29 records Highest priority Priority MEDIUM 25 MEDIUM, 4 LOW

    Other records, highest priority first

    Show all 29 records →
  • Release ·

    Apple Safari Safari 12.1.2

    23 records Highest priority Priority MEDIUM 19 MEDIUM, 4 LOW

    Other records, highest priority first

    Show all 23 records →
  • Release ·

    Apple iCloud for Windows, iCloud for Windows (Microsoft Store), iTunes for Windows iCloud for Windows 10.6, iCloud for Windows 7.13, iTunes for Windows 12.9.6

    22 records Highest priority Priority MEDIUM 19 MEDIUM, 3 LOW

    Other records, highest priority first

    Show all 22 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2019:3553
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2019:3553
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2019:3553
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:4035
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:4035
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:4035
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:4035
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:4035
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:4035
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:4035
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:4035

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-8666
  2. 2026-10-03 Alias added: GHSA-35q5-r29v-56m2

References

Advisory 7

  • 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