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CVE-2021-20257

EPSS 0.08% · P23
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I. Basic Information for CVE-2021-20257

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An infinite loop flaw was found in the e1000 NIC emulator of the QEMU. This issue occurs while processing transmits (tx) descriptors in process_tx_desc if various descriptor fields are initialized with invalid values. This flaw allows a guest to consume CPU cycles 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
不可达退出条件的循环(无限循环)
Source: NVD (National Vulnerability Database)
Vulnerability Title
QEMU 安全漏洞
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 中的e1000 存在安全漏洞，攻击者可利用该漏洞触发拒绝服务。
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

VendorProductAffected VersionsCPESubscribe
-QEMU Fixed-In v6.2.0 -

II. Public POCs for CVE-2021-20257

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III. Intelligence Information for CVE-2021-20257

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Same Patch Batch · n/a · 2022-03-16 · 80 CVEs total

CVE-2022-238129.8 CRITICALMalicious Package
CVE-2021-236485.4 MEDIUMCross-site Scripting (XSS)
CVE-2022-211643.7 LOWDenial of Service (DoS)
CVE-2021-39695Google Android 权限许可和访问控制问题漏洞
CVE-2021-39707Google Android 权限许可和访问控制问题漏洞
CVE-2021-39689Google Android 数据伪造问题漏洞
CVE-2021-39667Google Android 缓冲区错误漏洞
CVE-2021-39624Google Android 资源管理错误漏洞
CVE-2021-0957Google Android 权限许可和访问控制问题漏洞
CVE-2021-39793Google Android 缓冲区错误漏洞
CVE-2021-39685Google Android 缓冲区错误漏洞
CVE-2021-39693Google Android 缓冲区错误漏洞
CVE-2021-39694Google Android 权限许可和访问控制问题漏洞
CVE-2021-39690Google Android 输入验证错误漏洞
CVE-2021-39697Google Android 权限许可和访问控制问题漏洞
CVE-2021-39698Google Android 资源管理错误漏洞
CVE-2021-39701Google Android 输入验证错误漏洞
CVE-2021-39702Google Android 权限许可和访问控制问题漏洞
CVE-2021-39703Google Android 权限许可和访问控制问题漏洞
CVE-2021-39704Google Android 权限许可和访问控制问题漏洞

Showing top 20 of 80 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: QEMU
Same vendor: n/a
Same weakness: CWE-835

V. Comments for CVE-2021-20257

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