CVE-2021-20314
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I. Basic Information for CVE-2021-20314
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Stack buffer overflow in libspf2 versions below 1.2.11 when processing certain SPF macros can lead to Denial of service and potentially code execution via malicious crafted SPF explanation messages.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
libspf2 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libspf2是一个库，它允许电子邮件系统（例如 Sendmail、Postfix、Exim、Zmailer 和 MS Exchange）检查SPF 记录并确保电子邮件得到了来自它的域名的授权。这可以防止垃圾邮件发送者、诈骗者和电子邮件病毒/蠕虫常用的电子邮件伪造。 libspf2的SPF 存在安全漏洞，该漏洞源于libspf2的SPF宏可触发缓冲区溢出。攻击者可利用该漏洞造成拒绝服务，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 |
|---|---|---|---|---|
| - | libspf2 | 1.2.11 | - |
II. Public POCs for CVE-2021-20314
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
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- https://bugzilla.redhat.com/show_bug.cgi?id=1993070x_refsource_MISC
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CMSFT2NJDZ7PATRZSQPAOGSE7JD6ELOB/vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GFXJRHPE5OSCPTNA3ZZ4ORDHT4JQH3Y4/vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y6T4HYXXSUQCGJB2ES6X7Q74YYF7V7XU/vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2021-20314
Same Patch Batch · n/a · 2021-08-12 · 58 CVEs total
| CVE-2020-20975 | Gxlcms SQL注入漏洞 | |
| CVE-2020-28165 | Nature Easy Soft Network Technology ZenTao 代码问题漏洞 | |
| CVE-2021-38592 | Wasm3 缓冲区错误漏洞 | |
| CVE-2021-37222 | RCDCAP 安全漏洞 | |
| CVE-2020-24576 | Netskope Client 安全漏洞 | |
| CVE-2020-22403 | express-cart 跨站请求伪造漏洞 | |
| CVE-2021-38597 | wolfSSL 数据伪造问题漏洞 | |
| CVE-2021-27790 | Brocade Fabric OS 缓冲区错误漏洞 | |
| CVE-2021-27791 | Brocade Fabric OS 缓冲区错误漏洞 | |
| CVE-2021-35955 | Contao 跨站脚本漏洞 | |
| CVE-2021-27794 | Brocade Fabric OS 授权问题漏洞 | |
| CVE-2020-20977 | UK CMS 跨站脚本漏洞 | |
| CVE-2020-20979 | LJCMS 代码问题漏洞 | |
| CVE-2020-20981 | Metinfo MetInfo SQL注入漏洞 | |
| CVE-2021-38599 | WAL-G 代码问题漏洞 | |
| CVE-2021-38604 | GNU C Library 代码问题漏洞 | |
| CVE-2021-38606 | reNgine 安全特征问题漏洞 | |
| CVE-2020-18445 | YUNUCMS 跨站脚本漏洞 | |
| CVE-2020-18446 | YUNUCMS 跨站脚本漏洞 | |
| CVE-2020-18449 | UKCMS 跨站脚本漏洞 |
Showing top 20 of 58 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
- CVE-2026-8276
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bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
V. Comments for CVE-2021-20314
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