CVE-2021-30771
Quick assessment
Affected
Apple iOS and iPadOS
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等都是美国苹果（Apple）公司的产品。Apple macOS是一套专为Mac计算机所开发的专用操作系统。Apple macOS Big Sur是一个手机应用APP。WatchOs是一套使用于Apple Watch的手表操作系统。 Apple多款产品存在安全漏洞，该漏洞源于ibFontParser 库用TTF字体制作的数据可能会触发超出已分配数据结构末尾的写操作。攻击者可利用该漏洞在当前进程的上下文中执行代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2021-30771
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
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 11.4, iOS 14.6 and iPadOS 14.6, watchOS 7.5, tvOS 14.6. Processing a maliciously crafted font file may lead to arbitrary code execution.
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多款产品缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apple macOS等都是美国苹果（Apple）公司的产品。Apple macOS是一套专为Mac计算机所开发的专用操作系统。Apple macOS Big Sur是一个手机应用APP。WatchOs是一套使用于Apple Watch的手表操作系统。 Apple多款产品存在安全漏洞，该漏洞源于ibFontParser 库用TTF字体制作的数据可能会触发超出已分配数据结构末尾的写操作。攻击者可利用该漏洞在当前进程的上下文中执行代码。
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-2021-30771
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-30771
请登录查看更多情报信息。
Vendor Advisories for CVE-2021-30771 (4)
-
https://support.apple.com/en-us/HT212528 x_refsource_MISC
-
https://support.apple.com/en-us/HT212529 x_refsource_MISC
-
https://support.apple.com/en-us/HT212532 x_refsource_MISC
-
https://support.apple.com/en-us/HT212533 x_refsource_MISC
Same Patch Batch · Apple · 2022-03-18 · 74 CVEs total
| CVE-2022-22639 | Apple iOS和Apple iPadOS 安全漏洞 | |
| CVE-2022-22665 | Apple macOS Monterey 权限许可和访问控制问题漏洞 | |
| CVE-2022-22652 | Apple iOS和Apple iPadOS 访问控制错误漏洞 | |
| CVE-2022-22650 | Apple macOS Big Sur 访问控制错误漏洞 | |
| CVE-2022-22647 | Apple macOS Big Sur 授权问题漏洞 | |
| CVE-2022-22638 | Apple iOS和Apple iPadOS 代码问题漏洞 | |
| CVE-2022-22640 | Apple iOS和Apple iPadOS 缓冲区错误漏洞 | |
| CVE-2022-22641 | Apple iOS和Apple iPadOS资源管理错误漏洞 | |
| CVE-2022-22635 | Apple iOS和Apple iPadOS 缓冲区错误漏洞 | |
| CVE-2022-22633 | Apple iOS和Apple iPadOS 缓冲区错误漏洞 | |
| CVE-2022-22644 | Apple macOS Monterey 访问控制错误漏洞 | |
| CVE-2022-22636 | Apple iOS和Apple iPadOS 缓冲区错误漏洞 | |
| CVE-2022-22631 | Apple macOS Big Sur 缓冲区错误漏洞 | |
| CVE-2022-22632 | Apple iOS和Apple iPadOS权限许可和访问控制问题漏洞 | |
| CVE-2022-22634 | Apple iOS和Apple iPadOS 缓冲区错误漏洞 | |
| CVE-2022-22621 | Apple iOS和Apple iPadOS 信息泄露漏洞 | |
| CVE-2022-22626 | IBM Big SQL 缓冲区错误漏洞 | |
| CVE-2022-22627 | Apple macOS Big Sur 缓冲区错误漏洞 | |
| CVE-2022-22625 | Apple macOS Big Sur 缓冲区错误漏洞 | |
| CVE-2022-22622 | Apple iOS和Apple iPadOS 信息泄露漏洞 |
Showing top 20 of 74 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2021-30771
No comments yet