CVE-2020-9921 — Time-of-check Time-of-use (TOCTOU) Race Condition in Apple Macos

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race ConditionCWE-787 — Out-of-bounds Write3 documents3 sources
Severity
7.0HIGHNVD
EPSS
0.0%
top 88.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Apple MacosApple MAC OS XApple Macos Catalina 10.15.6 Security Update 2020-004 Mojave Security Update 2020-004
Timeline
PublishedOct 22
Latest updateMay 24

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Catalina 10.15.6. A malicious application may be able to execute arbitrary code with system privileges.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages3 packages

▶CVEListV5apple/macosunspecified — macOS Catalina 10.15.6
▶NVDapple/mac_os_x< 10.15.6

🔴Vulnerability Details

1
GHSA
GHSA-845m-9j3r-jhfg: A memory corruption issue was addressed with improved memory handling↗2022-05-24
▶

📋Vendor Advisories

1
Apple
CVE-2020-9921: macOS Catalina 10.15.6, Security Update 2020-004 Mojave, Security Update 2020-004 High Sierra↗2020-07-15
▶
CVE-2020-9921 — Apple Macos vulnerability | cvebase