PT-2019-19129 · Apple · Apple Macos

Lilang Wu + 1 · Published 2019-05-30 · Updated 2021-07-21 · CVE-2019-8635

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions macOS versions prior to 10.14.5

Description A memory corruption issue was addressed with improved memory handling, allowing an application to potentially execute arbitrary code with system privileges. The issue is related to a double free privilege escalation vulnerability in the AMDRadeonX4000 AMDSIGLContext, specifically with the discard StretchTex2Tex function.

Recommendations For versions prior to 10.14.5, update to macOS Mojave 10.14.5 to resolve the issue. As a temporary workaround, consider restricting access to the AMDRadeonX4000 AMDSIGLContext module to minimize the risk of exploitation.

Fix

Memory Corruption

Double Free

Weakness Enumeration

CWE-787

CWE-415

Related Identifiers

CVE-2019-8635

ZDI-19-539

ZDI-19-543

Affected Products

Apple Macos

References · 6

• https://zerodayinitiative.com/advisories/ZDI-19-539 · Security Note
• https://osv.dev/vulnerability/CVE-2019-8635 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-8635 · Security Note
• https://support.apple.com/HT210119 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-19-543 · Security Note
• https://t.me/defcon_news/17028 · Telegram Post