Denial of service in mod_lua r:parsebody
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-770.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Apache | Apache HTTP Server | up to 2.4.53 | — | No fix listed | CNA |
- Apache HTTP Server VendorApache Affected up to 2.4.53 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* | up to 2.4.53 | Vulnerable | Apache |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | 36 | Vulnerable | Fedoraproject |
| cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* Versions up to 2.4.53 Vulnerable ·Apache
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
Remediation
Red Hat 3 advisories
- RHSA-2022:8067 Released 2022-11-15 · Red Hat rating Moderatehttpd security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) httpd-2.4.53-7.el9, httpd-core-2.4.53-7.el9, httpd-devel-2.4.53-7.el9 +8
- RHSA-2022:7647 Released 2022-11-08 · Red Hat rating Moderatehttpd:2.4 security update
- Red Hat Enterprise Linux AppStream (v. 8) httpd-2.4.37-51.module+el8.7.0+16050+02173b8e.aarch64::httpd:2.4, httpd-2.4.37-51.module+el8.7.0+16050+02173b8e.ppc64le::httpd:2.4, httpd-2.4.37-51.module+el8.7.0+16050+02173b8e.s390x::httpd:2.4 +38
- RHSA-2022:6753 Released 2022-09-29 · Red Hat rating Moderatehttpd24-httpd security and bug fix update
- Red Hat Software Collections for RHEL Workstation(v. 7) httpd24-httpd-2.4.34-23.el7.5, httpd24-httpd-devel-2.4.34-23.el7.5, httpd24-httpd-manual-2.4.34-23.el7.5 +5
- Red Hat Software Collections for RHEL(v. 7) httpd24-httpd-2.4.34-23.el7.5, httpd24-httpd-devel-2.4.34-23.el7.5, httpd24-httpd-manual-2.4.34-23.el7.5 +5
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
Apache HTTP Server — FEDORA-2022-b54a8dee29
7 records Highest priority Priority HIGH 1 HIGH, 5 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2022-12679 mod_sed denial of servicePriority HIGH 76
- TI-2022-11260 Read beyond bounds in ap_strcmp_match()Priority MEDIUM 55
- TI-2022-09750 mod_proxy_ajp: Possible request smugglingPriority MEDIUM 52
- Advisory ·
Apache HTTP Server — FEDORA-2022-e620fb15d5
7 records Highest priority Priority HIGH 1 HIGH, 5 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2022-12679 mod_sed denial of servicePriority HIGH 76
- TI-2022-11260 Read beyond bounds in ap_strcmp_match()Priority MEDIUM 55
- TI-2022-09750 mod_proxy_ajp: Possible request smugglingPriority MEDIUM 52
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Enterprise Application Platform 6 | Affected | No fix planned: Out of support scope |
| Red Hat JBoss Web Server 3 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2022:7647 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2022:8067 |
| Red Hat Software Collections for RHEL Workstation(v. 7) | Fixed | RHSA-2022:6753 |
| Red Hat Software Collections for RHEL(v. 7) | Fixed | RHSA-2022:6753 |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat JBoss Core Services
Timeline
- 2026-10-02 Threatist record created from CVE-2022-29404
- 2026-10-03 Alias added: GHSA-jq5m-vpg7-ghpv
References
More Apache Http Server vulnerabilities
- TI-2021-18535 Path Traversal and Remote Code Execution in Apache HTTP Server 2.4.49 and 2.4.50 (incomplete fix of CVE-2021-41773) KEVCVSS 3.1CRITICAL 9.8
- TI-2021-18417 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49 KEVCVSS 3.1CRITICAL 9.8
- TI-2024-25716 Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path. KEVCVSS 3.1CRITICAL 9.1
- TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
- TI-2019-00184 Use after free in Apache HTTP Server KEVCVSS 3.1HIGH 7.8
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2022-29404 · CVE Program
- CVE-2022-29404 · NVD
- FIRST EPSS
- GHSA-jq5m-vpg7-ghpv · GitHub Advisory Database · CC BY 4.0
- CVE-2022-29404 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences