CVE-2019-8644

Description

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.

CVSS Metrics

• v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
• v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 0.82%• Percentile: 74%

Techniques & Countermeasures

• CWE-416•Use After Free

  The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

• CWE-787•Out-of-bounds Write

  The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

• apple•icloud

  < 7.13 | ≥ 10.0, < 10.6

• apple•icloud for windows

  ≥ unspecified, < iCloud for Windows 7.13

• apple•icloud for windows (microsoft store)

  ≥ unspecified, < iCloud for Windows 10.6

• Unknown•iOS

  ≥ unspecified, < iOS 12.4

• apple•iphone_os

  < 12.4

• apple•itunes

  < 12.9.6

• apple•itunes for windows

  ≥ unspecified, < iTunes for Windows 12.9.6

• apple•mac_os_x

  < 10.14.6

• apple•macos

  ≥ unspecified, < macOS Mojave 10.14.6

• apple•safari

  < 12.1.2 | ≥ unspecified, < Safari 12.1.2

• apple•tvos

  < 12.4 | ≥ unspecified, < tvOS 12.4

References (7)

• https://support.apple.com/HT210346
• https://support.apple.com/HT210348
• https://support.apple.com/HT210351
• https://support.apple.com/HT210355
• https://support.apple.com/HT210356
• https://support.apple.com/HT210357
• https://support.apple.com/HT210358