CVE-2021-1743 — Out-of-bounds Read in Apple IOS AND Ipados

CWE-125 — Out-of-bounds Read8 documents6 sources
Severity
7.8HIGHNVD
EPSS
0.6%
top 31.43%
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 read was addressed with improved bounds checking. 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 a maliciously crafted image 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 Packages8 packages

▶NVDapple/tvos< 14.4
▶CVEListV5apple/macosunspecified — 11.2+2
▶NVDapple/macos11.0 — 11.1.0
▶NVDapple/ipados< 14.4
▶NVDapple/watchos< 7.3

🔴Vulnerability Details

2
GHSA
GHSA-q9gg-5pfc-vvrm: An out-of-bounds read was addressed with improved bounds checking↗2022-05-24
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CVEList
CVE-2021-1743: An out-of-bounds read was addressed with improved bounds checking↗2021-04-02
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📋Vendor Advisories

2
Apple
CVE-2021-1743: macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave↗2021-02-01
▶
Apple
CVE-2021-1743: iOS 14.4 and iPadOS 14.4↗2021-01-26
▶

🕵️Threat Intelligence

2
Qualys
Prevent Pegasus Spyware Attacks with VMDR | Qualys↗2021-07-23
▶
Qualys
Protect your Devices from Pegasus Spyware using VMDR for Mobile Devices’ Proactive Approach↗2021-07-23
▶

💬Community

1
Bugzilla
CVE-2021-28210 edk2: unlimited FV recursion, round 2↗2020-09-29
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CVE-2021-1743 — Out-of-bounds Read in Apple | cvebase