CVE-2022-29404— Denial of service in mod_lua r:parsebody
Quick assessment
Affected
Apache Software Foundation Apache HTTP Server
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.4.53 及之前版本存在输入验证错误漏洞，该漏洞源于对调用 r:parsebody(0) 的 lua 脚本的恶意请求输入没有限制，攻击者利用该漏洞会导致拒绝服务。
Possible ATT&CK Techniques 1 AI
T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2022-29404
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Denial of service in mod_lua r:parsebody
Source: CVE Program / CVE List V5
Vulnerability Description
In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0) may cause a denial of service due to no default limit on possible input size.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Apache HTTP Server 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache HTTP Server是美国阿帕奇（Apache）基金会的一款开源网页服务器。该服务器具有快速、可靠且可通过简单的API进行扩充的特点。 Apache HTTP Server 2.4.53 及之前版本存在输入验证错误漏洞，该漏洞源于对调用 r:parsebody(0) 的 lua 脚本的恶意请求输入没有限制，攻击者利用该漏洞会导致拒绝服务。
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 |
|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | unspecified ~ 2.4.53 | - |
|
II. Public POCs for CVE-2022-29404
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2022-29404
请登录查看更多情报信息。
Vendor Advisories for CVE-2022-29404 (3)
-
https://security.netapp.com/advisory/ntap-20220624-0005/ x_refsource_CONFIRM
-
🔗 Apache HTTPD: Multiple Vulnerabilities (GLSA 202208-20) — Gentoo security Read full article vendor-advisory x_refsource_GENTOO
Mailing List Discussions for CVE-2022-29404 (3)
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPY2BLEVJWFH34AX77ZJPLD2OOBYR6ND/ vendor-advisory x_refsource_FEDORA
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QUGG2QZWHTITMABFLVXA4DNYUOTPWYQ/ vendor-advisory x_refsource_FEDORA
-
Same Patch Batch · Apache Software Foundation · 2022-06-08 · 8 CVEs total
| CVE-2022-31813 | mod_proxy X-Forwarded-For dropped by hop-by-hop mechanism | |
| CVE-2022-30556 | Information Disclosure in mod_lua with websockets | |
| CVE-2022-30522 | mod_sed denial of service | |
| CVE-2022-28615 | Read beyond bounds in ap_strcmp_match() | |
| CVE-2022-28614 | read beyond bounds via ap_rwrite() | |
| CVE-2022-28330 | read beyond bounds in mod_isapi | |
| CVE-2022-26377 | mod_proxy_ajp: Possible request smuggling |
IV. Related Vulnerabilities
Same product: Apache HTTP Server
-
CVE-2026-49975
Apache HTTP Server: mod_http2 denial of service -
CVE-2026-48913
Apache HTTP Server: mod_http2 memory corruption when file ha -
CVE-2026-42536
Apache HTTP Server: mod_xml2enc heap overflow -
CVE-2026-44185
Apache HTTP Server: Stack Buffer Over-Read in mod_ssl OCSP ` -
CVE-2026-34355
Apache HTTP Server: mod_proxy_html buffer overflow
Same vendor: Apache Software Foundation
-
CVE-2026-94276
Apache APISIX: Openid-connect introspection validation issue -
CVE-2026-94269
Apache APISIX: Servlet-style normalization creates a route/u -
CVE-2026-94250
Apache APISIX: Batch response aggregation can exhaust worker -
CVE-2026-94220
Apache APISIX: session fixation issue in feishu-auth and din -
CVE-2026-94212
Apache APISIX: unauthenticated impersonation issue in saml-a
Same weakness: CWE-770
-
CVE-2026-94250
Apache APISIX: Batch response aggregation can exhaust worker -
CVE-2026-103261
Tornado before 6.5.9 Denial of Service via Query String -
CVE-2026-101881
OpenClaw Windows Node before 2026.7.1 Denial of Service -
CVE-2026-103472
restbed through 5.0.0 WebSocket Memory Exhaustion via Unboun -
CVE-2026-103471
restbed through 5.0.0 Denial of Service via Unbounded Header
V. Comments for CVE-2022-29404
No comments yet