CVE-2021-1883 — Out-of-bounds Write in Apple IOS AND Ipados

CWE-787 — Out-of-bounds WriteCWE-354 — Improper Validation of Integrity Check Value7 documents4 sources
Severity
5.5MEDIUMNVD
EPSS
1.0%
top 23.03%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apple IOS AND IpadosApple MacosApple Tvos+4 more
Timeline
PublishedSep 8
Latest updateMay 24

Description

This issue was addressed with improved checks. This issue is fixed in Security Update 2021-004 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, Security Update 2021-003 Catalina, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted server messages may lead to heap corruption.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages10 packages

▶CVEListV5apple/tvosunspecified — 14.5
▶NVDapple/tvos< 14.5
▶CVEListV5apple/macosunspecified — 11.3+1
▶NVDapple/macos11.0 — 11.3
▶NVDapple/ipados< 14.5

🔴Vulnerability Details

2
GHSA
GHSA-vq82-pf9c-33h9: This issue was addressed with improved checks↗2022-05-24
▶
CVEList
CVE-2021-1883: This issue was addressed with improved checks↗2021-09-08
▶

📋Vendor Advisories

4
Apple
CVE-2021-1883: Security Update 2021-003 Catalina↗2021-05-24
▶
Apple
CVE-2021-1883: Security Update 2021-004 Mojave↗2021-05-24
▶
Apple
CVE-2021-1883: macOS Big Sur 11.3↗2021-04-26
▶
Apple
CVE-2021-1883: iOS 14.5 and iPadOS 14.5↗2021-04-26
▶
CVE-2021-1883 — Out-of-bounds Write in Apple | cvebase