CVE-2021-30736
published 2021-09-08CVE-2021-30736: A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. An…
PriorityP341high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
1.62%
73.6th percentile
A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. An application may be able to execute arbitrary code with kernel privileges.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | >= unspecified < 14.6 | 14.6 |
| apple | ipados | < 14.6 | 14.6 |
| apple | iphone_os | < 14.6 | 14.6 |
| apple | macos | >= 11.0.1 < 11.4 | 11.4 |
| apple | macos | >= unspecified < 11.4 | 11.4 |
| apple | macos | >= unspecified < 14.6 | 14.6 |
| apple | macos | >= unspecified < 7.5 | 7.5 |
| apple | macos_big_sur | — | — |
| apple | tvos | < 14.6 | 14.6 |
| apple | tvos | — | — |
| apple | watchos | < 7.5 | 7.5 |
| apple | watchos | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
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Apple
CVE-2021-30736: tvOS 14.6
vendor_apple·2021-05-24·CVSS 7.8
CVE-2021-30736 [HIGH] CVE-2021-30736: tvOS 14.6
Apple Security Update: About the security content of tvOS 14.6
Product: tvOS
Version: 14.6
CVE: CVE-2021-30736
Component: Kernel
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow was addressed with improved size validation.
Apple
CVE-2021-30736: watchOS 7.5
vendor_apple·2021-05-24·CVSS 7.8
CVE-2021-30736 [HIGH] CVE-2021-30736: watchOS 7.5
Apple Security Update: About the security content of watchOS 7.5
Product: watchOS
Version: 7.5
CVE: CVE-2021-30736
Component: Kernel
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow was addressed with improved size validation.
Apple
CVE-2021-30736: macOS Big Sur 11.4
vendor_apple·2021-05-24·CVSS 7.8
CVE-2021-30736 [HIGH] CVE-2021-30736: macOS Big Sur 11.4
Apple Security Update: About the security content of macOS Big Sur 11.4
Product: macOS Big Sur
Version: 11.4
CVE: CVE-2021-30736
Component: Kernel
Impact: An application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow was addressed with improved size validation.
GHSA
GHSA-765w-cqpp-rq2q: A buffer overflow was addressed with improved size validation
ghsa_unreviewed·2022-05-24
CVE-2021-30736 [HIGH] CWE-120 GHSA-765w-cqpp-rq2q: A buffer overflow was addressed with improved size validation
A buffer overflow was addressed with improved size validation. This issue is fixed in macOS Big Sur 11.4, tvOS 14.6, watchOS 7.5, iOS 14.6 and iPadOS 14.6. An application may be able to execute arbitrary code with kernel privileges.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://support.apple.com/en-us/HT212528https://support.apple.com/en-us/HT212529https://support.apple.com/en-us/HT212532https://support.apple.com/en-us/HT212533https://support.apple.com/en-us/HT212528https://support.apple.com/en-us/HT212529https://support.apple.com/en-us/HT212532https://support.apple.com/en-us/HT212533
2021-09-08
Published