CVE-2021-30766
Quick assessment
Affected
Apple Security Update - Catalina
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Apple macOS Big Sur是美国苹果（Apple）公司的一个手机应用APP。 Apple macOS Big Sur 11.5 存在缓冲区错误漏洞，该漏洞源于英特尔显卡驱动的边界错误，本地用户可以运行特制的程序来触发越界写入并导致系统意外终止或写入内核内存。该漏洞允许本地用户升级系统上的特权。
Possible ATT&CK Techniques 2 AI
T1068 · Exploitation for Privilege Escalation T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-30766
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Apple macOS Big Sur 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apple macOS Big Sur是美国苹果（Apple）公司的一个手机应用APP。 Apple macOS Big Sur 11.5 存在缓冲区错误漏洞，该漏洞源于英特尔显卡驱动的边界错误，本地用户可以运行特制的程序来触发越界写入并导致系统意外终止或写入内核内存。该漏洞允许本地用户升级系统上的特权。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-30766
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2021-30766 (3)
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https://support.apple.com/en-us/HT212603 x_refsource_MISC
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https://support.apple.com/en-us/HT212602 x_refsource_MISC
Same Patch Batch · Apple · 2021-09-08 · 214 CVEs total
| CVE-2021-1849 | Apple watchOS 数据伪造问题漏洞 | |
| CVE-2021-1831 | Apple Shortcuts 安全漏洞 | |
| CVE-2021-1835 | Apple iPadOS 权限许可和访问控制问题漏洞 | |
| CVE-2021-1833 | Apple iOS和Apple iPadOS 安全漏洞 | |
| CVE-2021-1843 | Apple macOS 输入验证错误漏洞 | |
| CVE-2021-1840 | Apple macOS 输入验证错误漏洞 | |
| CVE-2021-1838 | Apple macOS 安全漏洞 | |
| CVE-2021-1837 | Apple iOS 信任管理问题漏洞 | |
| CVE-2021-1839 | Apple macOS 权限许可和访问控制问题漏洞 | |
| CVE-2021-1846 | Apple macOS 缓冲区错误漏洞 | |
| CVE-2021-1832 | Apple watchOS 安全漏洞 | |
| CVE-2021-1841 | Apple macOS 缓冲区错误漏洞 | |
| CVE-2021-1851 | Apple watchOS 缓冲区错误漏洞 | |
| CVE-2021-1847 | Apple macOS 缓冲区错误漏洞 | |
| CVE-2021-1862 | Apple iOS和Apple iPadOS 授权问题漏洞 | |
| CVE-2021-1855 | Apple Safari 资源管理错误漏洞 | |
| CVE-2021-1859 | Apple macOS 权限许可和访问控制问题漏洞 | |
| CVE-2021-1860 | Apple iPadOS 缓冲区错误漏洞 | |
| CVE-2021-1854 | Apple iOS 安全漏洞 | |
| CVE-2021-1861 | Apple macOS 安全漏洞 |
Showing top 20 of 214 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-30766
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