CVE-2021-20235
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I. Basic Information for CVE-2021-20235
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
There's a flaw in the zeromq server in versions before 4.3.3 in src/decoder_allocators.hpp. The decoder static allocator could have its sized changed, but the buffer would remain the same as it is a static buffer. A remote, unauthenticated attacker who sends a crafted request to the zeromq server could trigger a buffer overflow WRITE of arbitrary data if CURVE/ZAP authentication is not enabled. The greatest impact of this flaw is to application availability, data integrity, and confidentiality.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
libzmq 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZeroMQ libzmq（0MQ）是一个轻量级分布式消息传递引擎核心库。 libzmq 存在安全漏洞，攻击者可利用该漏洞通过libzmq的ZMTP V1包触发缓冲区溢出，从而触发拒绝服务，并可能运行代码。
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 |
|---|---|---|---|---|
| - | zeromq | zeromq 4.3.3 | - |
II. Public POCs for CVE-2021-20235
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://bugzilla.redhat.com/show_bug.cgi?id=1921983x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-20235
Same Patch Batch · n/a · 2021-04-01 · 48 CVEs total
| CVE-2021-29932 | Rust 资源管理错误漏洞 | |
| CVE-2021-29935 | Rust 资源管理错误漏洞 | |
| CVE-2021-29937 | Rust 安全漏洞 | |
| CVE-2021-29941 | Rust 缓冲区错误漏洞 | |
| CVE-2021-29942 | Rust 缓冲区错误漏洞 | |
| CVE-2021-20296 | LIM OpenEXR 代码问题漏洞 | |
| CVE-2021-29421 | jbarlow83 pikepdf 代码问题漏洞 | |
| CVE-2021-3447 | 红帽 Ansible 日志信息泄露漏洞 | |
| CVE-2021-29940 | Rust 资源管理错误漏洞 | |
| CVE-2021-29933 | Rust 资源管理错误漏洞 | |
| CVE-2021-29934 | Rust 缓冲区错误漏洞 | |
| CVE-2021-29931 | Rust 资源管理错误漏洞 | |
| CVE-2021-29930 | Rust 缓冲区错误漏洞 | |
| CVE-2021-29929 | Rust 资源管理错误漏洞 | |
| CVE-2021-29251 | BTCPay Server 安全漏洞 | |
| CVE-2021-28918 | Npm netmask 代码问题漏洞 | |
| CVE-2021-3393 | PostgreSQL 安全漏洞 | |
| CVE-2021-20234 | ZeroMQ 资源管理错误漏洞 | |
| CVE-2021-22876 | Haxx libcurl 信息泄露漏洞 | |
| CVE-2021-22890 | Haxx libcurl 安全漏洞 |
Showing top 20 of 48 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
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Same weakness: CWE-120
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