Vulnerability · Published Jun 8, 2022 · Assigned by apache

CVE-2022-29404Denial of service in mod_lua r:parsebody

High 7.5

In plain English

A high-severity resource allocation without limits in Apache HTTP Server from Apache Software Foundation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 6.6% (higher than 94% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)6.6%top 6.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8httpd2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9httpd2.4.53-7.el9ALSA-2022:8067
AlmaLinux:9httpd-core2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8httpd-devel2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9httpd-devel2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8httpd-filesystem2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9httpd-filesystem2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8httpd-manual2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9httpd-manual2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8httpd-tools2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9httpd-tools2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8mod_http21.15.7-5.module_el8.6.0+2872+fe0ff7aaALSA-2022:7647
AlmaLinux:8mod_http21.15.7-5.module_el8.6.0+3031+fb177b09ALSA-2022:7647
AlmaLinux:8mod_ldap2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9mod_ldap2.4.53-7.el9ALSA-2022:8067
AlmaLinux:9mod_lua2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8mod_md1:2.0.8-8.module_el8.6.0+3031+fb177b09ALSA-2022:7647
AlmaLinux:8mod_md1:2.0.8-8.module_el8.6.0+2872+fe0ff7aaALSA-2022:7647
AlmaLinux:8mod_proxy_html1:2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9mod_proxy_html1:2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8mod_session2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9mod_session2.4.53-7.el9ALSA-2022:8067
AlmaLinux:8mod_ssl1:2.4.37-51.module_el8.7.0+3281+01e58653ALSA-2022:7647
AlmaLinux:9mod_ssl1:2.4.53-7.el9ALSA-2022:8067
Alpine:v3.20apache22.4.54-r0ALPINE-CVE-2022-29404
Alpine:v3.21apache22.4.54-r0ALPINE-CVE-2022-29404
Alpine:v3.22apache22.4.54-r0ALPINE-CVE-2022-29404
Alpine:v3.23apache22.4.54-r0ALPINE-CVE-2022-29404
Alpine:v3.24apache22.4.54-r0ALPINE-CVE-2022-29404
Debian:12apache22.4.54-1DEBIAN-CVE-2022-29404
Debian:13apache22.4.54-1DEBIAN-CVE-2022-29404
Debian:14apache22.4.54-1DEBIAN-CVE-2022-29404
Rocky Linux:8httpd0:2.4.37-51.module+el8.7.0+1059+126e9251RLSA-2022:7647
Rocky Linux:9httpd0:2.4.53-7.el9RLSA-2022:8067
Rocky Linux:8mod_http20:1.15.7-5.module+el8.6.0+823+f143cee1RLSA-2022:7647
Rocky Linux:8mod_md1:2.0.8-8.module+el8.4.0+553+7a69454bRLSA-2022:7647
Rocky Linux:8mod_md1:2.0.8-8.module+el8.5.0+695+1fa8055eRLSA-2022:7647
Ubuntu:22.04:LTSapache22.4.52-1ubuntu4.1USN-5487-1
Ubuntu:22.04:LTSapache22.4.52-1ubuntu4.1UBUNTU-CVE-2022-29404

Affected products (as reported)

VendorProductVersions
Apache Software Foundation Apache HTTP Server unspecified – through 2.4.53

Weakness: CWE-770

References