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CVE-2021-3409

Quick assessment

Affected
n/a QEMU
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.

QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 存在缓冲区错误漏洞，攻击者可利用该漏洞触发内存损坏，从而触发拒绝服务，并可能在主机系统上运行代码。

AI Predicted 8.1 Difficulty: Hard EPSS 0.49% · P40
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I. Basic Information for CVE-2021-3409

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
内存缓冲区边界内操作的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
QEMU 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QEMU（Quick Emulator）是法国法布里斯-贝拉（Fabrice Bellard）个人开发者的一套模拟处理器软件。该软件具有速度快、跨平台等特点。 QEMU 存在缓冲区错误漏洞，攻击者可利用该漏洞触发内存损坏，从而触发拒绝服务，并可能在主机系统上运行代码。
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

Vendor Product Affected Versions CPE Subscribe
- QEMU up to (including) 5.2.0 -

II. Public POCs for CVE-2021-3409

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III. Intelligence Information for CVE-2021-3409

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Vendor Advisories for CVE-2021-3409 (3)

Mailing List Discussions for CVE-2021-3409 (2)

Same Patch Batch · n/a · 2021-03-23 · 39 CVEs total

CVE-2021-29068 9.9 CRITICAL Netgear NETGEAR 缓冲区错误漏洞
CVE-2021-29066 9.6 CRITICAL Netgear NETGEAR 授权问题漏洞
CVE-2021-29067 9.6 CRITICAL Netgear NETGEAR 授权问题漏洞
CVE-2021-29065 9.6 CRITICAL Netgear NETGEAR RBR850 授权问题漏洞
CVE-2021-29071 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29076 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29077 9.6 CRITICAL 多款Netgear产品命令注入漏洞
CVE-2021-29078 9.6 CRITICAL 多款Netgear产品命令注入漏洞
CVE-2021-29079 9.6 CRITICAL Netgear NETGEAR 命令注入漏洞
CVE-2021-29082 9.6 CRITICAL 多款Netgear产品信息泄露漏洞
CVE-2021-29075 8.4 HIGH 多款Netgear产品缓冲区错误漏洞
CVE-2021-29074 8.4 HIGH NETGEAR 多款产品缓冲区错误漏洞
CVE-2021-29072 8.4 HIGH Netgear NETGEAR 命令注入漏洞
CVE-2021-29070 8.4 HIGH Netgear NETGEAR 命令注入漏洞
CVE-2021-29081 8.4 HIGH 多款Netgear产品缓冲区错误漏洞
CVE-2021-29080 8.1 HIGH Netgear NETGEAR 授权问题漏洞
CVE-2021-29073 7.6 HIGH Netgear NETGEAR 缓冲区错误漏洞
CVE-2020-28503 7.3 HIGH Prototype Pollution
CVE-2021-29069 7.3 HIGH 多款Netgear产品命令注入漏洞
CVE-2021-23362 5.3 MEDIUM Regular Expression Denial of Service (ReDoS)

Showing top 20 of 39 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: QEMU
Same vendor: n/a
Same weakness: CWE-119

V. Comments for CVE-2021-3409

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