CVE-2021-1820 — Improper Initialization in Apple IOS AND Ipados

CWE-665 — Improper InitializationCWE-668 — Resource ExposureCWE-20 — Improper Input Validation7 documents6 sources
Severity
6.5MEDIUMNVD
EPSS
0.8%
top 26.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
10
Apple IOS AND IpadosApple MacosApple Tvos+7 more
Timeline
PublishedSep 8
Latest updateMay 24

Description

A memory initialization issue was addressed with improved memory handling. This issue is fixed in macOS Big Sur 11.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5. Processing maliciously crafted web content may result in the disclosure of process memory.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:NExploitability: 2.8 | Impact: 3.6

Affected Packages13 packages

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

🔴Vulnerability Details

2
GHSA
GHSA-g25v-ch2q-jp7c: A memory initialization issue was addressed with improved memory handling↗2022-05-24
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OSV
CVE-2021-1820: A memory initialization issue was addressed with improved memory handling↗2021-09-08
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📋Vendor Advisories

4
Red Hat
webkitgtk: Memory initialization issue possibly leading to memory disclosure↗2021-07-28
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Apple
CVE-2021-1820: iOS 14.5 and iPadOS 14.5↗2021-04-26
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Apple
CVE-2021-1820: macOS Big Sur 11.3↗2021-04-26
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Debian
CVE-2021-1820: webkit2gtk - A memory initialization issue was addressed with improved memory handling. This ...↗2021
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