CVE-2021-33193
Description
A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48.
Risk Information
Base Score
7.5
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS Score
Exploitation Probability
0.916
Associated Vulnerability
| Vulnerability | OS Platform |
|---|---|
| Vulnerabilities CVE-2021-33193,CVE-2021-34798,CVE-2021-36160,CVE-2021-39275,CVE-2021-40438 are fixed in Apache Apache 2.4.49 | Windows |
| Apache HTTP server (USN-5090-1) apache2_2.4.41-4ubuntu3.5_i386.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2_2.4.41-4ubuntu3.5_amd64.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2_2.4.46-4ubuntu1.2_i386.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2_2.4.46-4ubuntu1.2_amd64.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2_2.4.29-1ubuntu4.17_i386.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2_2.4.29-1ubuntu4.17_amd64.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2-bin_2.4.41-4ubuntu3.5_i386.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2-bin_2.4.41-4ubuntu3.5_amd64.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2-bin_2.4.46-4ubuntu1.2_i386.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2-bin_2.4.46-4ubuntu1.2_amd64.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2-bin_2.4.29-1ubuntu4.17_i386.deb | Linux |
| Apache HTTP server (USN-5090-1) apache2-bin_2.4.29-1ubuntu4.17_amd64.deb | Linux |
| Httpd update (ELSA-2022-9276) httpd-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.x86_64.rpm | Linux |
| Httpd-devel update (ELSA-2022-9276) httpd-devel-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.x86_64.rpm | Linux |
| Httpd-filesystem update (ELSA-2022-9276) httpd-filesystem-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.noarch.rpm | Linux |
| Httpd-manual update (ELSA-2022-9276) httpd-manual-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.noarch.rpm | Linux |
| Httpd-tools update (ELSA-2022-9276) httpd-tools-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.x86_64.rpm | Linux |
| Mod_ldap update (ELSA-2022-9276) mod_ldap-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.x86_64.rpm | Linux |
| Mod_proxy_html update (ELSA-2022-9276) mod_proxy_html-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.x86_64.rpm | Linux |
| Mod_session update (ELSA-2022-9276) mod_session-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.x86_64.rpm | Linux |
| Mod_ssl update (ELSA-2022-9276) mod_ssl-2.4.37-43.0.3.module+el8.5.0+20624+5d3b49d0.3.x86_64.rpm | Linux |
| (RHSA-2022:1915) httpd:2.4 security and bug fix update httpd-debugsource-2.4.37-47.module+el8.6.0+14529+083145da.1.x86_64.rpm | Linux |
| (RHSA-2022:1915) httpd:2.4 security and bug fix update mod_http2-debugsource-1.15.7-5.module+el8.6.0+13996+01710940.x86_64.rpm | Linux |
| (RHSA-2022:1915) httpd:2.4 security and bug fix update mod_ldap-2.4.37-47.module+el8.6.0+14529+083145da.1.x86_64.rpm | Linux |
| (RHSA-2022:1915) httpd:2.4 security and bug fix update mod_proxy_html-2.4.37-47.module+el8.6.0+14529+083145da.1.x86_64.rpm | Linux |
| (RHSA-2022:1915) httpd:2.4 security and bug fix update mod_session-2.4.37-47.module+el8.6.0+14529+083145da.1.x86_64.rpm | Linux |
| Vulnerabilities CVE-2021-33193,CVE-2021-34798,CVE-2021-36160,CVE-2021-39275,CVE-2021-40438 are fixed in Apache Apache 2.4.49 (For Linux) | Linux |
| Httpd update (ELSA-2024-3121) httpd-2.4.37-64.module+el8.10.0+90271+3bc76a16.x86_64.rpm | Linux |
| Httpd-devel update (ELSA-2024-3121) httpd-devel-2.4.37-64.module+el8.10.0+90271+3bc76a16.x86_64.rpm | Linux |
| Httpd-filesystem update (ELSA-2024-3121) httpd-filesystem-2.4.37-64.module+el8.10.0+90271+3bc76a16.noarch.rpm | Linux |
| Httpd-manual update (ELSA-2024-3121) httpd-manual-2.4.37-64.module+el8.10.0+90271+3bc76a16.noarch.rpm | Linux |
| Httpd-tools update (ELSA-2024-3121) httpd-tools-2.4.37-64.module+el8.10.0+90271+3bc76a16.x86_64.rpm | Linux |
| Mod_http2 update (ELSA-2024-3121) mod_http2-1.15.7-10.module+el8.10.0+90327+96b8ea28.x86_64.rpm | Linux |
| Mod_ldap update (ELSA-2024-3121) mod_ldap-2.4.37-64.module+el8.10.0+90271+3bc76a16.x86_64.rpm | Linux |
| Mod_md update (ELSA-2024-3121) mod_md-2.0.8-8.module+el8.9.0+90011+2f9c6a23.x86_64.rpm | Linux |
| Mod_proxy_html update (ELSA-2024-3121) mod_proxy_html-2.4.37-64.module+el8.10.0+90271+3bc76a16.x86_64.rpm | Linux |
| Mod_session update (ELSA-2024-3121) mod_session-2.4.37-64.module+el8.10.0+90271+3bc76a16.x86_64.rpm | Linux |
| Mod_ssl update (ELSA-2024-3121) mod_ssl-2.4.37-64.module+el8.10.0+90271+3bc76a16.x86_64.rpm | Linux |
| CVE-2021-33193 | NCM |
Patch Details
No records foundReferences
https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234