critical
CVE-2021-20325
httpd: Regression of CVE-2021-40438 and CVE-2021-26691 fixes in Red Hat Enterprise Linux 8.5
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), AlmaLinux (high), Oracle (high), Rocky Linux (high).
Description
Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a security regression compared to the versions shipped in Red Hat Enterprise Linux 8.4. A user who installs or updates to Red Hat Enterprise Linux 8.5.0 would be vulnerable to the mentioned CVEs, even if they were properly fixed in Red Hat Enterprise Linux 8.4. CVE-2021-20325 was assigned to that Red Hat specific security regression and it does not affect the upstream versions of httpd.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| alma 8 | httpd:2.4::httpd, httpd:2.4::httpd-devel, httpd:2.4::httpd-filesystem and 8 more | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma and 3 more |
| Oracle Linux 8 | httpd, httpd-devel, httpd-filesystem and 8 more | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 and 3 more |
| rocky 8 | httpd:2.4::httpd, httpd:2.4::httpd-devel, httpd:2.4::httpd-filesystem and 8 more | 2.4.37-43.module+el8.5.0+714+5ec56ee8 and 3 more |
Show all 33 entries from 3 sources
| Source | Package | Fixed in |
|---|---|---|
| alma 8 | httpd:2.4::httpd | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::httpd-devel | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::httpd-filesystem | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::httpd-manual | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::httpd-tools | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::mod_http2 | 1.15.7-3.module_el8.5.0+2609+b30d9eec |
| alma 8 | httpd:2.4::mod_ldap | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::mod_md | 1:2.0.8-8.module_el8.5.0+2609+b30d9eec |
| alma 8 | httpd:2.4::mod_proxy_html | 1:2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::mod_session | 2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| alma 8 | httpd:2.4::mod_ssl | 1:2.4.37-43.module_el8.5.0+2597+c4b14997.alma |
| Oracle Linux 8 | httpd | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | httpd-devel | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | httpd-filesystem | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | httpd-manual | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | httpd-tools | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | mod_http2 | 1.15.7-3.module+el8.4.0+20024+b87b2deb |
| Oracle Linux 8 | mod_ldap | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | mod_md | 1:2.0.8-8.module+el8.3.0+7816+49791cfd |
| Oracle Linux 8 | mod_proxy_html | 1:2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | mod_session | 2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| Oracle Linux 8 | mod_ssl | 1:2.4.37-43.0.1.module+el8.5.0+20426+404a9eb9 |
| rocky 8 | httpd:2.4::httpd | 2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::httpd-devel | 2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::httpd-filesystem | 2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::httpd-manual | 2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::httpd-tools | 2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::mod_http2 | 1.15.7-3.module+el8.5.0+695+1fa8055e |
| rocky 8 | httpd:2.4::mod_ldap | 2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::mod_md | 1:2.0.8-8.module+el8.5.0+695+1fa8055e |
| rocky 8 | httpd:2.4::mod_proxy_html | 1:2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::mod_session | 2.4.37-43.module+el8.5.0+714+5ec56ee8 |
| rocky 8 | httpd:2.4::mod_ssl | 1:2.4.37-43.module+el8.5.0+714+5ec56ee8 |
References
- https://access.redhat.com/security/cve/CVE-2021-20325
- https://bugzilla.redhat.com/show_bug.cgi?id=2017321
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20325
- https://errata.almalinux.org/8/ALSA-2021-4537.html
- https://errata.rockylinux.org/RLSA-2021:4537
- https://linux.oracle.com/cve/CVE-2021-20325.html
- https://linux.oracle.com/errata/ELSA-2021-4537.html
- https://nvd.nist.gov/vuln/detail/CVE-2021-20325