CVE-2020-3863 — Out-of-bounds Write in Apple Macos

CWE-787 — Out-of-bounds WriteCWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer3 documents3 sources
Severity
7.8HIGHNVD
EPSS
0.3%
top 44.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Apple MacosApple MAC OS X
Timeline
PublishedOct 27
Latest updateMay 24

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.3, Security Update 2020-001 Mojave, Security Update 2020-001 High Sierra. An application may be able to execute arbitrary code with system 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 Packages2 packages

▶CVEListV5apple/macosunspecified — 10.15
▶NVDapple/mac_os_x< 10.15.3

🔴Vulnerability Details

2
GHSA
GHSA-cq5m-4r98-mcfg: A memory corruption issue was addressed with improved memory handling↗2022-05-24
▶
CVEList
CVE-2020-3863: A memory corruption issue was addressed with improved memory handling↗2020-10-27
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CVE-2020-3863 — Out-of-bounds Write in Apple Macos | cvebase