CVE-2021-30901 — Out-of-bounds Write in Apple Macos

CWE-787 — Out-of-bounds Write5 documents3 sources
Severity
7.8HIGHNVD
EPSS
0.3%
top 50.74%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Apple MacosApple MAC OS X
Timeline
PublishedAug 24
Latest updateOct 25

Description

Multiple out-of-bounds write issues were addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.0.1, Security Update 2021-007 Catalina, macOS Big Sur 11.6.1. A malicious application may be able to execute arbitrary code with kernel privileges.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

▶CVEListV5apple/macosunspecified — 12.0+2
▶NVDapple/macos11.0 — 11.6.1+1
▶NVDapple/mac_os_x< 10.15.7+1

🔴Vulnerability Details

1
CVEList
CVE-2021-30901: Multiple out-of-bounds write issues were addressed with improved bounds checking↗2021-08-24
▶

📋Vendor Advisories

3
Apple
CVE-2021-30901: macOS Monterey 12.0.1↗2021-10-25
▶
Apple
CVE-2021-30901: Security Update 2021-007 Catalina↗2021-10-25
▶
Apple
CVE-2021-30901: macOS Big Sur 11.6.1↗2021-10-25
▶
CVE-2021-30901 — Out-of-bounds Write in Apple Macos | cvebase