CVE-2021-30805 — Out-of-bounds Write in Apple Macos

CWE-787 — Out-of-bounds Write4 documents4 sources
Severity
9.8CRITICALNVD
EPSS
1.6%
top 18.13%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Apple MacosApple Security Update CatalinaApple MAC OS X
Timeline
PublishedSep 8
Latest updateMay 24

Description

A memory corruption issue was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages4 packages

▶CVEListV5apple/security_update_catalinaunspecified — 2021
▶CVEListV5apple/macosunspecified — 11.5+1
▶NVDapple/macos11.0 — 11.5
▶NVDapple/mac_os_x10.14 — 10.14.6+4

🔴Vulnerability Details

2
GHSA
GHSA-cg43-6rv4-f24m: A memory corruption issue was addressed with improved input validation↗2022-05-24
▶
CVEList
CVE-2021-30805: A memory corruption issue was addressed with improved input validation↗2021-09-08
▶

📋Vendor Advisories

1
Apple
CVE-2021-30805: Security Update 2021-005 Mojave↗2021-07-21
▶
CVE-2021-30805 — Out-of-bounds Write in Apple Macos | cvebase