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CVE-2021-20196

EPSS 0.04% · P12
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I. Basic Information for CVE-2021-20196

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. 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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
空指针解引用
Source: NVD (National Vulnerability Database)
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 存在代码问题漏洞，该漏洞源于block: fdc: 空指针解引用导致客户端崩溃。
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

VendorProductAffected VersionsCPESubscribe
-qemu vulnerable up to (including) qemu 5.2.0 -

II. Public POCs for CVE-2021-20196

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III. Intelligence Information for CVE-2021-20196

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Same Patch Batch · n/a · 2021-05-26 · 92 CVEs total

CVE-2021-292525.4 MEDIUMRSA Archer 跨站脚本漏洞
CVE-2021-292535.1 MEDIUMRSA Archer 安全漏洞
CVE-2021-22745Triconex Model 3009 MP 代码问题漏洞
CVE-2021-22705Schneider Electric 缓冲区错误漏洞
CVE-2021-22731Schneider Electric 授权问题漏洞
CVE-2021-22735Schneider Electric homeLYnk和spaceLYnk 数据伪造问题漏洞
CVE-2021-22733Schneider Electric homeLYnk和spaceLYnk 安全漏洞
CVE-2021-22734Schneider Electric spaceLYnk和homeLYnk 数据伪造问题漏洞
CVE-2021-22732Schneider Electric homeLYnk和spaceLYnk 安全漏洞
CVE-2021-22742Triconex Model 3009 MP 代码问题漏洞
CVE-2021-22743Triconex Model 3009 MP 代码问题漏洞
CVE-2021-22744Triconex Model 3009 MP 代码问题漏洞
CVE-2021-22740Schneider Electric homeLYnk和spaceLYnk 信息泄露漏洞
CVE-2021-22746Triconex Model 3009 MP 代码问题漏洞
CVE-2021-22747Triconex Model 3009 MP 代码问题漏洞
CVE-2020-22021FFmpeg 缓冲区错误漏洞
CVE-2021-25643Couchbase Server 安全漏洞
CVE-2020-22024FFmpeg 安全漏洞
CVE-2020-22026FFmpeg 安全漏洞
CVE-2021-3548dmg2img 缓冲区错误漏洞

Showing top 20 of 92 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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

V. Comments for CVE-2021-20196

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