CVE-2021-1834

CRITICAL

macOS - Out-of-bounds Write

Title source: llm
STIX 2.1

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.3, Security Update 2021-002 Catalina, Security Update 2021-003 Mojave. A malicious application may be able to execute arbitrary code with kernel privileges.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212325
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212326
Vendor Advisory x_refsource_misc
https://support.apple.com/en-us/HT212327

Scores

CVSS v3 9.8
EPSS 0.0297
EPSS Percentile 85.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (17)
apple/mac_os_x 10.14
apple/mac_os_x 10.14.0
apple/mac_os_x 10.14.1
apple/mac_os_x 10.14.2
apple/mac_os_x 10.14.3
apple/mac_os_x 10.14.4 (2 CPE variants)
apple/mac_os_x 10.14.5
apple/mac_os_x 10.14.6 (17 CPE variants)
apple/mac_os_x 10.15
apple/mac_os_x 10.15.1
... and 7 more
Published Sep 08, 2021
Tracked Since Feb 18, 2026