CVE-2021-33913
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2021-33913
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
libspf2 before 1.2.11 has a heap-based buffer overflow that might allow remote attackers to execute arbitrary code (via an unauthenticated e-mail message from anywhere on the Internet) with a crafted SPF DNS record, because of SPF_record_expand_data in spf_expand.c. The amount of overflowed data depends on the relationship between the length of an entire domain name and the length of its leftmost label. The vulnerable code may be part of the supply chain of a site's e-mail infrastructure (e.g., with additional configuration, Exim can use libspf2; the Postfix web site links to unofficial patches for use of libspf2 with Postfix; older versions of spfquery relied on libspf2) but most often is not.
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 存在缓冲区错误漏洞，该漏洞源于libspf2存在堆缓冲区溢出，远程攻击者可利用该漏洞使用一个特定的SPF DNS记录执行任意代码。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
II. Public POCs for CVE-2021-33913
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-33913
请登录查看更多情报信息。
- https://security.gentoo.org/glsa/202401-22vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-33913
Same Patch Batch · n/a · 2022-01-19 · 24 CVEs total
| CVE-2021-46204 | Taocms SQL注入漏洞 | |
| CVE-2021-46028 | langhsu mblog 跨站请求伪造漏洞 | |
| CVE-2021-46026 | Mysiteforme 跨站脚本漏洞 | |
| CVE-2021-46027 | Mysiteforme 跨站请求伪造漏洞 | |
| CVE-2021-46025 | OneBlog 跨站脚本漏洞 | |
| CVE-2022-23045 | phpIPAM 跨站脚本漏洞 | |
| CVE-2022-23046 | phpIPAM SQL注入漏洞 | |
| CVE-2021-26247 | Cacti 跨站脚本漏洞 | |
| CVE-2021-23225 | Cacti 跨站脚本漏洞 | |
| CVE-2021-3816 | Cacti 跨站脚本漏洞 | |
| CVE-2021-38789 | Allwinner Technology R818 安全漏洞 | |
| CVE-2021-44299 | Naviwebs Navigate CMS 跨站脚本漏洞 | |
| CVE-2021-33912 | libspf2 缓冲区错误漏洞 | |
| CVE-2021-46203 | Taocms 路径遍历漏洞 | |
| CVE-2021-38788 | Allwinner Technology R818 资源管理错误漏洞 | |
| CVE-2021-46030 | JavaQuarkBbs 跨站脚本漏洞 | |
| CVE-2021-44837 | Delta RM 安全漏洞 | |
| CVE-2021-45808 | Jpress 代码问题漏洞 | |
| CVE-2021-38787 | Allwinner Technology R818 输入验证错误漏洞 | |
| CVE-2021-46104 | Webp_Server_Go 路径遍历漏洞 |
Showing top 20 of 24 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
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-2021-33913
No comments yet