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TI-2019-06403 Aliases CVE-2019-8844GHSA-278v-44j3-pqxv

Out-of-bounds write in Apple iOS and iPadOS

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: 9 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 tvOS 13.3, watchOS 6.1.1, iCloud for Windows 10.9, iOS 13.3 and iPadOS 13.3, Safari 13.0.4, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. Processing maliciously crafted web content may lead to arbitrary code execution.

Why it matters now

EPSS 0.02271 83rd percentileScored 2026-11-07
Fix Partial iOS and iPadOS (Apple): 13.3watchOS (Apple): 6.1+4 more productsRed Hat: 2 advisoriesRed Hat: 9 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
AppleiOS and iPadOSbefore 13.313.3Patch availableCNA
ApplewatchOSbefore 6.16.1Patch availableCNA
AppletvOSbefore 13.313.3Patch availableCNA
AppleSafaribefore 13.013.0Patch availableCNA
AppleiTunes for Windowsbefore 12.1012.10Patch availableCNA
AppleiCloud for Windowsbefore 10.910.9Patch availableCNA
AppleiCloud for Windowsbefore 7.167.16Patch availableCNA
  • iOS and iPadOS VendorApple Affected before 13.3 Fixed in 13.3 Patch available CNA
  • watchOS VendorApple Affected before 6.1 Fixed in 6.1 Patch available CNA
  • tvOS VendorApple Affected before 13.3 Fixed in 13.3 Patch available CNA
  • Safari VendorApple Affected before 13.0 Fixed in 13.0 Patch available CNA
  • iTunes for Windows VendorApple Affected before 12.10 Fixed in 12.10 Patch available CNA
  • iCloud for Windows VendorApple Affected before 10.9 Fixed in 10.9 Patch available CNA
  • iCloud for Windows VendorApple Affected before 7.16 Fixed in 7.16 Patch available CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*before 7.16; 10.0 to before 10.9VulnerableApple
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*before 12.10.3VulnerableApple
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*before 13.0.4VulnerableApple
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 13.3VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 13.3VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 13.3VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 6.1.1VulnerableApple
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* Versions before 7.16; 10.0 to before 10.9 Vulnerable ·Apple
  • cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* Versions before 12.10.3 Vulnerable ·Apple
  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 13.0.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 13.3 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 13.3 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 13.3 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 6.1.1 Vulnerable ·Apple
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

  • Fix · CNA iOS and iPadOS (Apple) Fixed in 13.3
  • Fix · CNA watchOS (Apple) Fixed in 6.1
  • Fix · CNA tvOS (Apple) Fixed in 13.3
  • Fix · CNA Safari (Apple) Fixed in 13.0
  • Fix · CNA iTunes for Windows (Apple) Fixed in 12.10
  • Fix · CNA iCloud for Windows (Apple) Fixed in 10.9
  • Fix · CNA iCloud for Windows (Apple) Fixed in 7.16

Red Hat 2 advisories

  • RHSA-2020:4451 Released 2020-11-04 · Red Hat rating Moderate
    GNOME security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) LibRaw-devel-0.19.5-2.el8
    • Red Hat Enterprise Linux AppStream (v. 8) LibRaw-0.19.5-2.el8, gnome-settings-daemon-3.32.0-11.el8, webkit2gtk3-2.28.4-1.el8 +3
  • 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

Fixed in the same release

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

  • Release ·

    Apple iOS and iPadOS 13.3

    17 records Highest priority Priority MEDIUM 4 MEDIUM, 13 LOW

    Other records, highest priority first

    • TI-2019-06404 Use after free in Apple iOS and iPadOSPriority MEDIUM 43
    • TI-2019-06395 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2019-06390 Out-of-bounds read in Apple iOS and iPadOSPriority MEDIUM 42
    Show all 17 records →
  • Release ·

    Apple Safari 13.0

    14 records Highest priority Priority MEDIUM 7 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2019-06404 Use after free in Apple iOS and iPadOSPriority MEDIUM 43
    • TI-2019-06395 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2019-06336 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    Show all 14 records →
Show 5 more groups
  • Release ·

    Apple iTunes for Windows 12.10

    12 records Highest priority Priority MEDIUM 8 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2019-06404 Use after free in Apple iOS and iPadOSPriority MEDIUM 43
    • TI-2019-06395 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2019-06336 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 41
    Show all 12 records →
  • Release ·

    Apple tvOS 13.3

    6 records Highest priority Priority MEDIUM 3 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2019-06404 Use after free in Apple iOS and iPadOSPriority MEDIUM 43
    • TI-2019-06395 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2019-06396 Out-of-bounds write in Apple iOS and iPadOSPriority LOW 37
    Show all 6 records →
  • Release ·

    Apple iCloud for Windows 10.9

    5 records Highest priority Priority MEDIUM 3 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2019-06404 Use after free in Apple iOS and iPadOSPriority MEDIUM 43
    • TI-2019-06395 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2020-03366 Origin validation error in Apple iOS and iPadOSPriority LOW 34
    Show all 5 records →
  • Release ·

    Apple iCloud for Windows 7.16

    3 records Highest priority Priority MEDIUM 3 MEDIUM

    Other records, highest priority first

    • TI-2019-06404 Use after free in Apple iOS and iPadOSPriority MEDIUM 43
    • TI-2019-06395 Out-of-bounds write in Apple iOS and iPadOSPriority MEDIUM 42
    Show all 3 records →
  • Release ·

    Apple watchOS 6.1

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2019-06396 Out-of-bounds write in Apple iOS and iPadOSPriority LOW 37
    Show all 2 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 Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:4451
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
Not affected: 3 products
  • Red Hat CodeReady Linux Builder (v. 8)
  • Red Hat Enterprise Linux AppStream (v. 8)
  • Red Hat Enterprise Linux BaseOS (v. 8)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-8844
  2. 2026-10-03 Alias added: GHSA-278v-44j3-pqxv

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