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TI-2020-03379 Aliases CVE-2020-3878GHSA-8vpv-x7vv-g726

Out-of-bounds read in Apple iOS

Priority MEDIUM 46CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
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 was addressed with improved input validation. This issue is fixed in iOS 13.5 and iPadOS 13.5, macOS Catalina 10.15.5, tvOS 13.4.5, watchOS 6.2.5, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. Processing a maliciously crafted image may lead to arbitrary code execution.

Why it matters now

EPSS 0.09134 95th percentileScored 2026-11-07
Fix Fixed iOS (Apple): iOS 13.5 and iPadOS 13.5macOS (Apple): macOS Catalina 10.15.5+5 more products

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleiOSbefore iOS 13.5 and iPadOS 13.5iOS 13.5 and iPadOS 13.5Patch availableCNA
ApplemacOSbefore macOS Catalina 10.15.5macOS Catalina 10.15.5Patch availableCNA
AppletvOSbefore tvOS 13.4.5tvOS 13.4.5Patch availableCNA
ApplewatchOSbefore watchOS 6.2.5watchOS 6.2.5Patch availableCNA
AppleiTunes for Windowsbefore iTunes 12.10.7 for WindowsiTunes 12.10.7 for WindowsPatch availableCNA
AppleiCloud for Windowsbefore iCloud for Windows 11.2iCloud for Windows 11.2Patch availableCNA
AppleiCloud for Windows (Legacy)before iCloud for Windows 7.19iCloud for Windows 7.19Patch availableCNA
  • iOS VendorApple Affected before iOS 13.5 and iPadOS 13.5 Fixed in iOS 13.5 and iPadOS 13.5 Patch available CNA
  • macOS VendorApple Affected before macOS Catalina 10.15.5 Fixed in macOS Catalina 10.15.5 Patch available CNA
  • tvOS VendorApple Affected before tvOS 13.4.5 Fixed in tvOS 13.4.5 Patch available CNA
  • watchOS VendorApple Affected before watchOS 6.2.5 Fixed in watchOS 6.2.5 Patch available CNA
  • iTunes for Windows VendorApple Affected before iTunes 12.10.7 for Windows Fixed in iTunes 12.10.7 for Windows Patch available CNA
  • iCloud for Windows VendorApple Affected before iCloud for Windows 11.2 Fixed in iCloud for Windows 11.2 Patch available CNA
  • iCloud for Windows (Legacy) VendorApple Affected before iCloud for Windows 7.19 Fixed in iCloud for Windows 7.19 Patch available CNA

CPE configurations NVD · 30

CPEVersionsRoleVendor
cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:*before 7.19; 11.0 to before 11.2VulnerableApple
cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:*before 12.10.7VulnerableApple
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 13.5VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 13.5VulnerableApple
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*10.13 to before 10.13.6; 10.14 to before 10.14.6; 10.15 to before 10.15.5VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:*:*:*:*:*:*:*10.13.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:*10.13.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-002:*:*:*:*:*:*10.13.6 security_update_2018-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-003:*:*:*:*:*:*10.13.6 security_update_2018-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:*10.13.6 security_update_2019-001VulnerableApple
  • cpe:2.3:a:apple:icloud:*:*:*:*:*:windows:*:* Versions before 7.19; 11.0 to before 11.2 Vulnerable ·Apple
  • cpe:2.3:a:apple:itunes:*:*:*:*:*:windows:*:* Versions before 12.10.7 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 13.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 13.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions 10.13 to before 10.13.6; 10.14 to before 10.14.6; 10.15 to before 10.15.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:*:*:*:*:*:*:* Versions 10.13.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:-:*:*:*:*:*:* Versions 10.13.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-002:*:*:*:*:*:* Versions 10.13.6 security_update_2018-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2018-003:*:*:*:*:*:* Versions 10.13.6 security_update_2018-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-001:*:*:*:*:*:* Versions 10.13.6 security_update_2019-001 Vulnerable ·Apple
Show 20 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:*10.13.6 security_update_2019-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:*10.13.6 security_update_2019-003VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-004:*:*:*:*:*:*10.13.6 security_update_2019-004VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-005:*:*:*:*:*:*10.13.6 security_update_2019-005VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-006:*:*:*:*:*:*10.13.6 security_update_2019-006VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-007:*:*:*:*:*:*10.13.6 security_update_2019-007VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-001:*:*:*:*:*:*10.13.6 security_update_2020-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-002:*:*:*:*:*:*10.13.6 security_update_2020-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:*:*:*:*:*:*:*10.14.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:*10.14.6VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:*10.14.6 security_update_2019-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:*10.14.6 security_update_2019-002VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:*10.14.6 security_update_2019-004VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:*10.14.6 security_update_2019-005VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:*10.14.6 security_update_2019-006VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:*10.14.6 security_update_2019-007VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:*10.14.6 security_update_2020-001VulnerableApple
cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:*10.14.6 security_update_2020-002VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 13.4.5VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 6.2.5VulnerableApple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-002:*:*:*:*:*:* Versions 10.13.6 security_update_2019-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-003:*:*:*:*:*:* Versions 10.13.6 security_update_2019-003 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-004:*:*:*:*:*:* Versions 10.13.6 security_update_2019-004 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-005:*:*:*:*:*:* Versions 10.13.6 security_update_2019-005 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-006:*:*:*:*:*:* Versions 10.13.6 security_update_2019-006 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2019-007:*:*:*:*:*:* Versions 10.13.6 security_update_2019-007 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-001:*:*:*:*:*:* Versions 10.13.6 security_update_2020-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.13.6:security_update_2020-002:*:*:*:*:*:* Versions 10.13.6 security_update_2020-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:*:*:*:*:*:*:* Versions 10.14.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:-:*:*:*:*:*:* Versions 10.14.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-001:*:*:*:*:*:* Versions 10.14.6 security_update_2019-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-002:*:*:*:*:*:* Versions 10.14.6 security_update_2019-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-004:*:*:*:*:*:* Versions 10.14.6 security_update_2019-004 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-005:*:*:*:*:*:* Versions 10.14.6 security_update_2019-005 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-006:*:*:*:*:*:* Versions 10.14.6 security_update_2019-006 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2019-007:*:*:*:*:*:* Versions 10.14.6 security_update_2019-007 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-001:*:*:*:*:*:* Versions 10.14.6 security_update_2020-001 Vulnerable ·Apple
  • cpe:2.3:o:apple:mac_os_x:10.14.6:security_update_2020-002:*:*:*:*:*:* Versions 10.14.6 security_update_2020-002 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 13.4.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 6.2.5 Vulnerable ·Apple

Remediation

  • Fix · CNA iOS (Apple) Fixed in iOS 13.5 and iPadOS 13.5
  • Fix · CNA macOS (Apple) Fixed in macOS Catalina 10.15.5
  • Fix · CNA tvOS (Apple) Fixed in tvOS 13.4.5
  • Fix · CNA watchOS (Apple) Fixed in watchOS 6.2.5
  • Fix · CNA iTunes for Windows (Apple) Fixed in iTunes 12.10.7 for Windows
  • Fix · CNA iCloud for Windows (Apple) Fixed in iCloud for Windows 11.2
  • Fix · CNA iCloud for Windows (Legacy) (Apple) Fixed in iCloud for Windows 7.19

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-3878
  2. 2026-10-03 Alias added: GHSA-8vpv-x7vv-g726

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