Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-3392

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 5.2.0-2 存在资源管理错误漏洞，攻击者可使用此漏洞使主机上的QEMU进程崩溃，从而导致拒绝服务的情况。

AI Predicted 5.6 Difficulty: Moderate EPSS 0.45% · P38

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-3392

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
QEMU 资源管理错误漏洞
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 5.2.0-2 存在资源管理错误漏洞，攻击者可使用此漏洞使主机上的QEMU进程崩溃，从而导致拒绝服务的情况。
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 between 2.10.0 and 5.2.0 -

II. Public POCs for CVE-2021-3392

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-3392

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-3392 (2)

Mailing List Discussions for CVE-2021-3392 (2)

Other References for CVE-2021-3392 (1)

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-416