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CVE-2021-3611

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 7.0.0 之前版本存在缓冲区错误漏洞，该漏洞源于QEMU 的 Intel HD Audio 设备 (intel-hda)中存在缓冲区错误问题。攻击者可以利用此漏洞使主机上的 QEMU 进程崩溃，从而导致拒绝服务。

AI Predicted 6.5 Difficulty: Easy EPSS 0.46% · P38
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I. Basic Information for CVE-2021-3611

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack overflow vulnerability was found in the Intel HD Audio device (intel-hda) of QEMU. A malicious guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability. This flaw affects QEMU versions prior to 7.0.0.
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 7.0.0 之前版本存在缓冲区错误漏洞，该漏洞源于QEMU 的 Intel HD Audio 设备 (intel-hda)中存在缓冲区错误问题。攻击者可以利用此漏洞使主机上的 QEMU 进程崩溃，从而导致拒绝服务。
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 QEMU versions prior to 7.0.0 -

II. Public POCs for CVE-2021-3611

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III. Intelligence Information for CVE-2021-3611

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Vendor Advisories for CVE-2021-3611 (3)

Other References for CVE-2021-3611 (1)

Same Patch Batch · n/a · 2022-05-11 · 61 CVEs total

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Showing top 20 of 61 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-3611

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