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CVE-2020-35503

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存在安全漏洞，该漏洞允许特权客户用户破坏主机上的QEMU进程，从而导致拒绝服务。

AI Predicted 5.5 Difficulty: Easy EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2020-35503

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A NULL pointer dereference flaw was found in the megasas-gen2 SCSI host bus adapter emulation of QEMU in versions before and including 6.0. This issue occurs in the megasas_command_cancelled() callback function while dropping a SCSI request. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
QEMU 代码问题漏洞
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存在安全漏洞，该漏洞允许特权客户用户破坏主机上的QEMU进程，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 All QEMU versions before and including 6.0 -

II. Public POCs for CVE-2020-35503

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III. Intelligence Information for CVE-2020-35503

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Vendor Advisories for CVE-2020-35503 (2)

Same Patch Batch · n/a · 2021-06-02 · 54 CVEs total

CVE-2021-31921 Istio 授权问题漏洞
CVE-2020-35441 Fangfa FDCMS SQL注入漏洞
CVE-2015-1877 Freedesktop Xdg-utils 命令注入漏洞
CVE-2020-22054 FFmpeg 安全漏洞
CVE-2020-25362 Sourcecodester Online Shopping Alphaware SQL注入漏洞
CVE-2020-24862 Sourcecodester Medical Store Point SQL注入漏洞
CVE-2020-22056 FFmpeg 安全漏洞
CVE-2021-3499 OVN Kubernetes 安全漏洞
CVE-2020-22049 FFmpeg 资源管理错误漏洞
CVE-2020-22048 FFmpeg 资源管理错误漏洞
CVE-2020-6950 Oracle Fusion Middleware 路径遍历漏洞
CVE-2020-24870 Libraw 缓冲区错误漏洞
CVE-2020-27661 QEMU 数字错误漏洞
CVE-2021-28677 Pillow 输入验证错误漏洞
CVE-2021-28678 Pillow 数据伪造问题漏洞
CVE-2021-25288 Pillow 缓冲区错误漏洞
CVE-2021-25287 Pillow 缓冲区错误漏洞
CVE-2020-22046 FFmpeg 安全漏洞
CVE-2021-3468 Avahi 安全漏洞
CVE-2021-3522 GStreamer 缓冲区错误漏洞

Showing top 20 of 54 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: QEMU
Same vendor: n/a
Same weakness: CWE-476

V. Comments for CVE-2020-35503

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