CVE-2021-3997
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I. Basic Information for CVE-2021-3997
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
未经控制的递归
Source: NVD (National Vulnerability Database)
Vulnerability Title
systemd 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
systemd是德国Lennart Poettering个人开发者的一款基于Linux的系统和服务管理器。该产品兼容了SysV和LSB的启动脚本，且提供了一个用来表示系统服务间依赖关系的框架。 systemd 存在安全漏洞，该漏洞是由于systemd-tmpfiles中不受控制的递归而存在的。本地用户可以在tmp文件夹中创建多个嵌套目录，case systemd会在系统启动时崩溃。该漏洞允许本地用户执行拒绝服务(DoS)攻击。
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 |
|---|---|---|---|---|
| - | systemd | Fixed in v251-rc1 | - |
II. Public POCs for CVE-2021-3997
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://security.gentoo.org/glsa/202305-15vendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2021-3997
Same Patch Batch · n/a · 2022-08-23 · 54 CVEs total
| CVE-2022-24381 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-25888 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-25761 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-24298 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-21208 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-25231 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-25304 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-25302 | 7.5 HIGH | Denial of Service (DoS) |
| CVE-2022-37428 | 6.5 MEDIUM | PowerDNS Recursor 安全漏洞 |
| CVE-2021-3839 | DPDK 缓冲区错误漏洞 | |
| CVE-2021-3690 | Red Hat JBoss Enterprise Application Platform资源管理错误漏洞 | |
| CVE-2022-35115 | IceWarp WebClient SQL注入漏洞 | |
| CVE-2020-35509 | Red Hat Keycloak 信任管理问题漏洞 | |
| CVE-2021-3827 | Red Hat Keycloak 授权问题漏洞 | |
| CVE-2021-3798 | openCryptoki 安全漏洞 | |
| CVE-2022-37111 | BlueCMS SQL注入漏洞 | |
| CVE-2022-37112 | BlueCMS SQL注入漏洞 | |
| CVE-2022-37113 | BlueCMS SQL注入漏洞 | |
| CVE-2022-37223 | jfinal cms SQL注入漏洞 | |
| CVE-2022-37199 | jfinal cms SQL注入漏洞 |
Showing top 20 of 54 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
Same weakness: CWE-674
V. Comments for CVE-2021-3997
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