CVE-2021-30780 — Out-of-bounds Write in Apple Macos

CWE-787 — Out-of-bounds Write5 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.4%
top 39.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apple IOSApple MacosApple Security Update Catalina+4 more
Timeline
PublishedSep 8
Latest updateMay 24

Description

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, watchOS 7.6, tvOS 14.7, Security Update 2021-005 Mojave, Security Update 2021-004 Catalina. A malicious application may be able to gain root 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 Packages8 packages

▶CVEListV5apple/security_update_catalinaunspecified — 2021
▶NVDapple/tvos< 14.7
▶CVEListV5apple/macosunspecified — 11.5+3
▶NVDapple/macos11.0 — 11.5
▶NVDapple/watchos< 7.6

🔴Vulnerability Details

2
GHSA
GHSA-6mq7-ggq4-5r36: An out-of-bounds write issue was addressed with improved bounds checking↗2022-05-24
▶
CVEList
CVE-2021-30780: An out-of-bounds write issue was addressed with improved bounds checking↗2021-09-08
▶

📋Vendor Advisories

2
Apple
CVE-2021-30780: Security Update 2021-005 Mojave↗2021-07-21
▶
Apple
CVE-2021-30780: iOS 14.7 and iPadOS 14.7↗
▶
CVE-2021-30780 — Out-of-bounds Write in Apple Macos | cvebase