CVE-2021-30939 — Out-of-bounds Read in Apple IOS AND Ipados

CWE-125 — Out-of-bounds Read9 documents4 sources
Severity
7.8HIGHNVD
EPSS
0.4%
top 38.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Apple IOS AND IpadosApple MacosApple Watchos+4 more
Timeline
PublishedAug 24
Latest updateJan 25

Description

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Big Sur 11.6.2, tvOS 15.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2 and iPadOS 15.2, watchOS 8.3. 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 Packages9 packages

▶CVEListV5apple/macosunspecified — 12.1+3
▶NVDapple/macos11.0 — 11.6.2+1
▶NVDapple/mac_os_x10.15 — 10.15.7+1
▶NVDapple/tvos< 15.2
▶NVDapple/ipados< 15.2

🔴Vulnerability Details

1
CVEList
CVE-2021-30939: An out-of-bounds read was addressed with improved bounds checking↗2021-08-24
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📋Vendor Advisories

5
Apple
CVE-2021-30939: Security Update 2021-008 Catalina↗2021-12-13
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Apple
CVE-2021-30939: watchOS 8.3↗2021-12-13
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Apple
CVE-2021-30939: macOS Monterey 12.1↗2021-12-13
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Apple
CVE-2021-30939: tvOS 15.2↗2021-12-13
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Apple
CVE-2021-30939: macOS Big Sur 11.6.2↗2021-12-13
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🕵️Threat Intelligence

2
Talos
Vulnerability Spotlight: Vulnerability in Apple iOS, iPad OS and MacOS could lead to disclosure of sensitive memory data↗2022-01-25
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Talos
Vulnerability Spotlight: Vulnerability in Apple iOS, iPad OS and MacOS could lead to disclosure of sensitive memory data↗2022-01-25
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CVE-2021-30939 — Out-of-bounds Read in Apple | cvebase