CVE-2021-1881 — Out-of-bounds Read in Apple IOS AND Ipados

CWE-125 — Out-of-bounds Read6 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.5%
top 33.91%
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

An out-of-bounds read was addressed with improved input validation. This issue is fixed in Security Update 2021-002 Catalina, Security Update 2021-003 Mojave, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing a maliciously crafted font file may lead to arbitrary 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 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-m2m5-p4p4-3w6r: An out-of-bounds read was addressed with improved input validation↗2022-05-24
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CVEList
CVE-2021-1881: An out-of-bounds read was addressed with improved input validation↗2021-09-08
▶

📋Vendor Advisories

3
Apple
CVE-2021-1881: iOS 14.5 and iPadOS 14.5↗2021-04-26
▶
Apple
CVE-2021-1881: Security Update 2021-002 Catalina↗2021-04-26
▶
Apple
CVE-2021-1881: macOS Big Sur 11.3↗2021-04-26
▶
CVE-2021-1881 — Out-of-bounds Read in Apple | cvebase