CVE-2021-23386— Remote Memory Exposure
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I. Basic Information for CVE-2021-23386
Vulnerability Information
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Vulnerability Title
Remote Memory Exposure
Source: NVD (National Vulnerability Database)
Vulnerability Description
This affects the package dns-packet before 5.2.2. It creates buffers with allocUnsafe and does not always fill them before forming network packets. This can expose internal application memory over unencrypted network when querying crafted invalid domain names.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
dns-packet 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
dns-packet是一个应用软件。一个抽象的编码为编码/解码DNS数据包的依从模型。 dns-packet 5.2.2之前版本存在安全漏洞，该漏洞源于使用allocUnsafe创建缓冲区，并且在形成网络数据包之前并不总是填充它们。
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 |
|---|---|---|---|---|
| - | dns-packet | unspecified ~ 5.2.2 | - |
II. Public POCs for CVE-2021-23386
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCVerified env Premium
Qwen3.6-35B-A3B · 7767 chars
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III. Intelligence Information for CVE-2021-23386
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- https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563x_refsource_MISC
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719x_refsource_MISC
- https://hackerone.com/bugs?subject=user&%3Breport_id=968858x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2021-23386
Same Patch Batch · n/a · 2021-05-20 · 45 CVEs total
| CVE-2020-24396 | Homee Brain Cube 安全漏洞 | |
| CVE-2021-3480 | slapi-nis 代码问题漏洞 | |
| CVE-2021-3536 | Red Hat Wildfly 跨站脚本漏洞 | |
| CVE-2021-27461 | Emerson Rosemount X-STREAM Gas Analyzer 路径遍历漏洞 | |
| CVE-2020-15522 | Bouncy Castle BC 竞争条件问题漏洞 | |
| CVE-2021-27467 | Emerson Rosemount X-STREAM Gas Analyzer 安全漏洞 | |
| CVE-2021-27465 | Emerson Rosemount X-STREAM Gas Analyzer 跨站脚本漏洞 | |
| CVE-2021-27463 | Emerson Rosemount X-STREAM Gas Analyzer 安全漏洞 | |
| CVE-2021-3426 | Python 路径遍历漏洞 | |
| CVE-2021-27457 | Emerson Rosemount X-STREAM Gas Analyzer 加密问题漏洞 | |
| CVE-2021-29659 | ownCloud 安全漏洞 | |
| CVE-2020-24395 | Homee Brain Cube 数据伪造问题漏洞 | |
| CVE-2021-28111 | Draege X-Dock 信任管理问题漏洞 | |
| CVE-2021-28112 | Draege X-Dock 安全漏洞 | |
| CVE-2021-3438 | HP 多款产品缓冲区错误漏洞 | |
| CVE-2021-27434 | Siemens SIMATIC OPC UA 信息泄露漏洞 | |
| CVE-2021-25930 | Opennms Group OpenNMS 跨站请求伪造漏洞 | |
| CVE-2021-25929 | Opennms Group OpenNMS 跨站脚本漏洞 | |
| CVE-2020-21053 | FusionPBX 跨站脚本漏洞 | |
| CVE-2021-25931 | Opennms Group OpenNMS 跨站请求伪造漏洞 |
Showing top 20 of 45 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
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GPAC box_code_base.c sidx_box_read allocation of resources - CVE-2026-8123
Open5GS NSSF message.c ogs_sbi_discovery_option_add_snssais - CVE-2026-8122
Open5GS NSSF message.c ogs_sbi_discovery_option_add_service_ - CVE-2026-8121
Open5GS NSSF conv.c ogs_sbi_parse_plmn_list denial of servic
V. Comments for CVE-2021-23386
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