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CVE-2021-3517

EPSS 0.11% · P28
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I. Basic Information for CVE-2021-3517

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
libxml2 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libxml2是开源的一个用来解析XML文档的函数库。它用C语言写成，并且能为多种语言所调用，例如C语言，C++，XSH。 libxml2 中entities.c存在缓冲区错误漏洞，该漏洞源于网络系统或产品在内存上执行操作时，未正确验证数据边界，导致向关联的其他内存位置上执行了错误的读写操作。攻击者可利用该漏洞导致缓冲区溢出或堆溢出等。
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
-libxml2 libxml2 2.9.11 -

II. Public POCs for CVE-2021-3517

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III. Intelligence Information for CVE-2021-3517

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Same Patch Batch · n/a · 2021-05-19 · 20 CVEs total

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CVE-2020-20264MikroTik RouterOS 数字错误漏洞
CVE-2020-20266MikroTik RouterOS 代码问题漏洞
CVE-2017-17674BMC Software BMC Remedy 9.1SP3 代码问题漏洞
CVE-2017-17678BMC Remedy Mid Tier 9.1SP3 跨站脚本漏洞
CVE-2017-17675BMC Software BMC Remedy 9.1SP3 日志信息泄露漏洞
CVE-2017-17677BMC Remedy 9.1SP3 安全漏洞
CVE-2021-27924Couchbase Server 安全漏洞
CVE-2021-3445Red Hat libdnf 数据伪造问题漏洞
CVE-2021-31930concerto 跨站脚本漏洞
CVE-2021-33204PostgreSQL 命令注入漏洞
CVE-2021-31158Couchbase Server 安全漏洞
CVE-2021-25644Couchbase Server 安全漏洞
CVE-2020-36364Smartstore SmartStoreNET 路径遍历漏洞
CVE-2021-27925Couchbase Server 竞争条件问题漏洞
CVE-2020-36365Smartstore SmartStoreNET 输入验证错误漏洞

IV. Related Vulnerabilities

Same product: libxml2
Same vendor: n/a
Same weakness: CWE-787

V. Comments for CVE-2021-3517

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