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CVE-2021-34550

Quick assessment

Affected
n/a n/a
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.

Tor是一个虚拟隧道网络。允许个人和团体提高他们在 Internet 上的隐私和安全性。 Tor 中存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。

AI Predicted 5.3 Difficulty: Moderate EPSS 1.56% · P73

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-34550

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Tor before 0.4.6.5, aka TROVE-2021-006. The v3 onion service descriptor parsing allows out-of-bounds memory access, and a client crash, via a crafted onion service descriptor
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
Tor 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tor是一个虚拟隧道网络。允许个人和团体提高他们在 Internet 上的隐私和安全性。 Tor 中存在缓冲区错误漏洞。该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
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

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-34550

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-34550

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Vendor Advisories for CVE-2021-34550 (1)

Security Blog Posts for CVE-2021-34550 (1)

Other References for CVE-2021-34550 (1)

Same Patch Batch · n/a · 2021-06-29 · 28 CVEs total

CVE-2021-23400 6.3 MEDIUM HTTP Header Injection
CVE-2021-20102 Machform 跨站请求伪造漏洞
CVE-2021-33503 urllib3 资源管理错误漏洞
CVE-2021-34548 Tor 信息泄露漏洞
CVE-2021-34549 Arch Linux 资源管理错误漏洞
CVE-2021-31160 ZOHO ManageEngine ServiceDesk Plus 安全漏洞
CVE-2021-31530 ZOHO ManageEngine ServiceDesk Plus 信息泄露漏洞
CVE-2021-31531 ZOHO ManageEngine ServiceDesk Plus 代码问题漏洞
CVE-2021-34824 Istio 权限许可和访问控制问题漏洞
CVE-2021-32990 winproladder 缓冲区错误漏洞
CVE-2021-32992 winproladder 缓冲区错误漏洞
CVE-2021-32988 winproladder 缓冲区错误漏洞
CVE-2021-21871 PowerISO 缓冲区错误漏洞
CVE-2021-20101 Machform 注入漏洞
CVE-2021-35941 Western Digital WD My Book Live 访问控制错误漏洞
CVE-2021-20103 Machform 跨站脚本漏洞
CVE-2021-20104 Machform 代码问题漏洞
CVE-2021-20105 Machform 输入验证错误漏洞
CVE-2021-22119 VMware Spring Security 安全漏洞
CVE-2020-21394 Zhongbang CRMEB SQL注入漏洞

Showing top 20 of 28 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2021-34550

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