CVE-2021-40438
httpd: The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es...
CVE-2021-40438 is fixed in 19 products on 1 platform, first by apache2 2.4.29-1ubuntu4.18, released September 16, 2021. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on December 1, 2021, with known ransomware use. Patch Radar priority: Patch now.
Patch nowCISA KEVKnown ransomware use
CVSS
9.0
important
Exploitation
Exploited
Listed by CISA
CISA KEV
Dec 1, 2021
Federal due date Dec 15, 2021. Known ransomware use
EPSS
1.0000
99th percentile
The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es): * httpd: Regression of CVE-2021-40438 and CVE-2021-26691 fixes in AlmaLinux (CVE-2021-20325) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| apache2 · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.18 | apache2 2.4.29-1ubuntu4.18 | Sep 16, 2021 |
| apache2 · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | apache2 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| apache2-bin · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.18 | apache2-bin 2.4.29-1ubuntu4.18 | Sep 16, 2021 |
| apache2-bin · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | apache2-bin 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| apache2-data · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.18 | apache2-data 2.4.29-1ubuntu4.18 | Sep 16, 2021 |
| apache2-data · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | apache2-data 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| apache2-suexec-custom · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.18 | apache2-suexec-custom 2.4.29-1ubuntu4.18 | Sep 16, 2021 |
| apache2-suexec-custom · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | apache2-suexec-custom 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| apache2-suexec-pristine · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.18 | apache2-suexec-pristine 2.4.29-1ubuntu4.18 | Sep 16, 2021 |
| apache2-suexec-pristine · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | apache2-suexec-pristine 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| apache2-utils · Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.18 | apache2-utils 2.4.29-1ubuntu4.18 | Sep 16, 2021 |
| apache2-utils · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | apache2-utils 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| httpd · RHEL 8 | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| httpd · almalinux 8 | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| httpd · ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| httpd-devel · RHEL 8 | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| httpd-devel · almalinux 8 | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| httpd-devel · ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| httpd-filesystem · RHEL 8 | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| httpd-filesystem · almalinux 8 | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| httpd-filesystem · ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| httpd-manual · RHEL 8 | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| httpd-manual · almalinux 8 | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| httpd-manual · ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| httpd-tools · RHEL 8 | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| httpd-tools · almalinux 8 | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| httpd-tools · ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| libapache2-mod-md · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | libapache2-mod-md 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| libapache2-mod-proxy-uwsgi · Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.6 | libapache2-mod-proxy-uwsgi 2.4.41-4ubuntu3.6 | Sep 16, 2021 |
| mod_http2 · RHEL 8 | 0:1.15.7-3.module+el8.4.0+8625+d397f3da | RHSA-2021:3816 | Oct 12, 2021 |
| mod_http2 · almalinux 8 | 1.15.7-3.module_el8.5.0+2609+b30d9eec | ALBA-2021:4604 | Nov 10, 2021 |
| mod_http2 · ol 8 | 0:1.15.7-3.module+el8.4.0+20024+b87b2deb | ELSA-2021-3816 | Oct 13, 2021 |
| mod_ldap · RHEL 8 | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| mod_ldap · almalinux 8 | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| mod_ldap · ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| mod_md · RHEL 8 | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2021:3816 | Oct 12, 2021 |
| mod_md · almalinux 8 | 1:2.0.8-8.module_el8.5.0+2609+b30d9eec | ALBA-2021:4604 | Nov 10, 2021 |
| mod_md · ol 8 | 1:2.0.8-8.module+el8.3.0+7816+49791cfd | ELSA-2021-3816 | Oct 13, 2021 |
| mod_proxy_html · RHEL 8 | 1:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| mod_proxy_html · almalinux 8 | 1:2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| mod_proxy_html · ol 8 | 1:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| mod_session · RHEL 8 | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| mod_session · almalinux 8 | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| mod_session · ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
| mod_ssl · RHEL 8 | 1:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | RHSA-2021:3816 | Oct 12, 2021 |
| mod_ssl · almalinux 8 | 1:2.4.37-43.module_el8.5.0+2597+c4b14997.alma | ALSA-2021:4537 | Nov 9, 2021 |
| mod_ssl · ol 8 | 1:2.4.37-39.0.1.module+el8.4.0+20372+b87b2deb.1 | ELSA-2021-3816 | Oct 13, 2021 |
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