CVE-2021-1747 — Out-of-bounds Write in Apple IOS AND Ipados

CWE-787 — Out-of-bounds Write5 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.8%
top 26.19%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apple IOS AND IpadosApple MacosApple Ipados+4 more
Timeline
PublishedApr 2
Latest updateMay 24

Description

An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, watchOS 7.3, tvOS 14.4, iOS 14.4 and iPadOS 14.4. Processing maliciously crafted web content may lead to code execution.

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

▶NVDapple/tvos< 14.4
▶CVEListV5apple/macosunspecified — 11.2+2
▶NVDapple/macos11.0 — 11.2
▶NVDapple/ipados< 14.4
▶NVDapple/watchos< 7.3

🔴Vulnerability Details

2
GHSA
GHSA-982v-wx4r-2pr3: An out-of-bounds write was addressed with improved input validation↗2022-05-24
▶
CVEList
CVE-2021-1747: An out-of-bounds write was addressed with improved input validation↗2021-04-02
▶

📋Vendor Advisories

2
Apple
CVE-2021-1747: macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave↗2021-02-01
▶
Apple
CVE-2021-1747: iOS 14.4 and iPadOS 14.4↗2021-01-26
▶
CVE-2021-1747 — Out-of-bounds Write in Apple | cvebase