# CVE-2018-17199: mod_md: The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es... CVE-2018-17199 is fixed in 17 products on 1 platform, first by apache2 2.4.29-1ubuntu4.6, released April 1, 2019. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2018-17199 - Priority: High - CVSS: 7.5 (Moderate) - EPSS: 0.1999 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Jan 29, 2019 ## Description The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Security Fix(es): * httpd: mod_session_cookie does not respect expiry time (CVE-2018-17199) * httpd: mod_proxy_uwsgi buffer overflow (CVE-2020-11984) * httpd: mod_http2 concurrent pool usage (CVE-2020-11993) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | apache2 Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.6 | [apache2 2.4.29-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-2.4.29-1ubuntu4.6.md) | Apr 1, 2019 | | Linux | apache2-bin Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.6 | [apache2-bin 2.4.29-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-bin-2.4.29-1ubuntu4.6.md) | Apr 1, 2019 | | Linux | apache2-data Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.6 | [apache2-data 2.4.29-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-data-2.4.29-1ubuntu4.6.md) | Apr 1, 2019 | | Linux | apache2-suexec-custom Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.6 | [apache2-suexec-custom 2.4.29-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-suexec-custom-2.4.29-1ubuntu4.6.md) | Apr 1, 2019 | | Linux | apache2-suexec-pristine Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.6 | [apache2-suexec-pristine 2.4.29-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-suexec-pristine-2.4.29-1ubuntu4.6.md) | Apr 1, 2019 | | Linux | apache2-utils Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.6 | [apache2-utils 2.4.29-1ubuntu4.6](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-utils-2.4.29-1ubuntu4.6.md) | Apr 1, 2019 | | Linux | httpd RHEL 8 | 0:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | httpd ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | httpd-devel RHEL 8 | 0:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | httpd-devel ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | httpd-filesystem RHEL 8 | 0:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | httpd-filesystem ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | httpd-manual RHEL 8 | 0:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | httpd-manual ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | httpd-tools RHEL 8 | 0:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | httpd-tools ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | mod_http2 RHEL 8 | 0:1.15.7-3.module+el8.4.0+8625+d397f3da | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | mod_http2 ol 8 | 0:1.15.7-3.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | mod_ldap RHEL 8 | 0:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | mod_ldap ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | mod_md RHEL 8 | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | mod_md ol 8 | 1:2.0.8-8.module+el8.3.0+7816+49791cfd | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | mod_proxy_html RHEL 8 | 1:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | mod_proxy_html ol 8 | 1:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | mod_session RHEL 8 | 0:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | mod_session ol 8 | 0:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | | Linux | mod_ssl RHEL 8 | 1:2.4.37-39.module+el8.4.0+9658+b87b2deb | [RHSA-2021:1809](https://patchblox.com/security/data/fix/linux/rhsa-2021-1809.md) | May 18, 2021 | | Linux | mod_ssl ol 8 | 1:2.4.37-39.0.1.module+el8.4.0+20024+b87b2deb | [ELSA-2021-1809](https://patchblox.com/security/data/fix/linux/elsa-2021-1809.md) | May 25, 2021 | --- Data as of 2026-11-07T18:46:35Z UTC. 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