CVE-2021-30922 — Out-of-bounds Write in Apple Macos

CWE-787 — Out-of-bounds Write5 documents3 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 81.72%
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 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:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

▶CVEListV5apple/macosunspecified — 11.6
▶NVDapple/macos< 11.6.1+1
▶NVDapple/mac_os_x10.15 — 10.15.7+1

🔴Vulnerability Details

1
CVEList
CVE-2021-30922: Multiple out-of-bounds write issues were addressed with improved bounds checking↗2021-08-24
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📋Vendor Advisories

3
Apple
CVE-2021-30922: macOS Big Sur 11.6.1↗2021-10-25
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Apple
CVE-2021-30922: Security Update 2021-007 Catalina↗2021-10-25
▶
Apple
CVE-2021-30922: macOS Monterey 12.0.1↗2021-10-25
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CVE-2021-30922 — Out-of-bounds Write in Apple Macos | cvebase