CVE-2021-30739 — Out-of-bounds Write in Apple Macos

CWE-787 — Out-of-bounds Write6 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.1%
top 78.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Apple MacosApple MAC OS X
Timeline
PublishedSep 8
Latest updateMay 24

Description

A local attacker may be able to elevate their privileges. This issue is fixed in macOS Big Sur 11.4, Security Update 2021-003 Catalina, Security Update 2021-004 Mojave. A memory corruption issue was addressed with improved validation.

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 — 11.4+1
▶NVDapple/macos11.0.1 — 11.4
▶NVDapple/mac_os_x10.14.0 — 10.14.5+3

🔴Vulnerability Details

2
GHSA
GHSA-398g-pgqg-vjj2: A local attacker may be able to elevate their privileges↗2022-05-24
▶
CVEList
CVE-2021-30739: A local attacker may be able to elevate their privileges↗2021-09-08
▶

📋Vendor Advisories

3
Apple
CVE-2021-30739: macOS Big Sur 11.4↗2021-05-24
▶
Apple
CVE-2021-30739: Security Update 2021-004 Mojave↗2021-05-24
▶
Apple
CVE-2021-30739: Security Update 2021-003 Catalina↗2021-05-24
▶
CVE-2021-30739 — Out-of-bounds Write in Apple Macos | cvebase