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CVE-2021-30661

Quick assessment

Affected
Apple iOS and iPadOS
Exploitation
Confirmed exploitation in the wild; remediate immediately
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WebKitGTK+是WebKit引擎的全功能端口，包含WebKit的全部功能。 WebKitGTK+ 存在资源管理错误漏洞，该漏洞源于在WebKit Storage组件中处理web内容时出现了事后使用错误。以下产品及版本受到影响：WebKitGTK+: 2.30.0, 2.30.1, 2.30.2, 2.30.3, 2.30.4, 2.30.5, 2.30.6, 2.31.1, 2.31.90, 2.31.91, 2.32.0 。

AI Predicted 8.8 Difficulty: Hard KEV EPSS 4.49% · P91

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2021-30661

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A use after free issue was addressed with improved memory management. This issue is fixed in Safari 14.1, iOS 12.5.3, iOS 14.5 and iPadOS 14.5, watchOS 7.4, tvOS 14.5, macOS Big Sur 11.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..
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 WebKitGTK+ 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WebKitGTK+是WebKit引擎的全功能端口，包含WebKit的全部功能。 WebKitGTK+ 存在资源管理错误漏洞，该漏洞源于在WebKit Storage组件中处理web内容时出现了事后使用错误。以下产品及版本受到影响：WebKitGTK+: 2.30.0, 2.30.1, 2.30.2, 2.30.3, 2.30.4, 2.30.5, 2.30.6, 2.31.1, 2.31.90, 2.31.91, 2.32.0 。
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)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
Apple iOS and iPadOS unspecified ~ 14.5 -
Apple Safari unspecified ~ 14.1 -
Apple tvOS unspecified ~ 14.5 -
Apple watchOS unspecified ~ 7.4 -
Apple macOS unspecified ~ 11.3 -
Apple macOS unspecified ~ 12.5 -

II. Public POCs for CVE-2021-30661

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-30661

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Vendor Advisories for CVE-2021-30661 (6)

Same Patch Batch · Apple · 2021-09-08 · 214 CVEs total

CVE-2021-1847 Apple macOS 缓冲区错误漏洞
CVE-2021-1834 Apple macOS 缓冲区错误漏洞
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-2021-1860 Apple iPadOS 缓冲区错误漏洞
CVE-2021-1854 Apple iOS 安全漏洞
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-2021-1852 Apple Kernel 缓冲区错误漏洞
CVE-2021-1862 Apple iOS和Apple iPadOS 授权问题漏洞

Showing top 20 of 214 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: iOS and iPadOS
Same vendor: Apple

V. Comments for CVE-2021-30661

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