CVE-2021-40438
apacheVulnerabilityCVSS 9.0Patched
No public exploitation has been reported so far. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 3.1 : 9.0 CRITICAL · CVSS 2.0 : 6.8 MEDIUM
Attack vectorNetwork (remote)
Attack complexityHigh
Privileges requiredNone
User interactionNone
ScopeChanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Vector: AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Arch | apache | 2.4.48-1 | 2.4.49-1 | fixed |
| Debian:11 | apache2 | - | 2.4.51-1~deb11u1 | fixed |
| Debian:12 | apache2 | - | 2.4.49-1 | fixed |
| Debian:13 | apache2 | - | 2.4.49-1 | fixed |
| Debian:14 | apache2 | - | 2.4.49-1 | fixed |
| Debian:9 | apache2 | - | 2.4.25-3+deb9u11 | fixed |
| Debian:10 | apache2 | - | 2.4.38-3+deb10u6 | fixed |
| Ubuntu:Pro:16.04:LTS | apache2 | - | 2.4.18-2ubuntu3.17+esm3 | fixed |
| Ubuntu:18.04:LTS | apache2 | - | 2.4.29-1ubuntu4.18 | fixed |
| Ubuntu:20.04:LTS | apache2 | - | 2.4.41-4ubuntu3.6 | fixed |
| Ubuntu:18.04:LTS | apache2 | - | 2.4.29-1ubuntu4.17 | fixed |
| Ubuntu:20.04:LTS | apache2 | - | 2.4.41-4ubuntu3.5 | fixed |
| Ubuntu:Pro:14.04:LTS | apache2 | - | 2.4.7-1ubuntu4.22+esm2 | fixed |
| Ubuntu:Pro:16.04:LTS | apache2 | - | 2.4.18-2ubuntu3.17+esm2 | fixed |
| SUSE:HPE Helion OpenStack 8 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:OpenStack Cloud 8 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:OpenStack Cloud 9 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:OpenStack Cloud Crowbar 8 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:OpenStack Cloud Crowbar 9 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP2-BCL | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP3-LTSS | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP3-BCL | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP4-LTSS | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP5 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | apache2 | - | 2.4.23-29.80.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15-ESPOS | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15-LTSS | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise Server 15-LTSS | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP1-BCL | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP1-LTSS | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP1 | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Enterprise Storage 6 | apache2 | - | 2.4.33-3.55.1 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP2 | apache2 | - | 2.4.43-3.32.1 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP3 | apache2 | - | 2.4.43-3.32.1 | fixed |
| SUSE:Linux Enterprise Module for Package Hub 15 SP3 | apache2 | - | 2.4.43-3.32.1 | fixed |
| SUSE:Linux Enterprise Module for Server Applications 15 SP2 | apache2 | - | 2.4.43-3.32.1 | fixed |
| SUSE:Linux Enterprise Module for Server Applications 15 SP3 | apache2 | - | 2.4.43-3.32.1 | fixed |
| openSUSE:Leap 15.2 | apache2 | - | 2.4.43-lp152.2.21.1 | fixed |
| openSUSE:Leap 15.3 | apache2 | - | 2.4.43-3.32.1 | fixed |
| Red Hat:enterprise_linux:8::appstream | httpd | - | 0:2.4.37-39.module+el8.4.0+12865+a7065a39.1 | fixed |
| Red Hat:rhel_eus:8.2::appstream | httpd | - | 0:2.4.37-21.module+el8.2.0+12904+53ee7aba.1 | fixed |
| Red Hat:rhel_eus:8.1::appstream | httpd | - | 0:2.4.37-16.module+el8.1.0+12900+7e6e5641.1 | fixed |
| Red Hat:enterprise_linux:7::client | httpd | - | 0:2.4.6-97.el7_9.1 | fixed |
| Red Hat:enterprise_linux:7::computenode | httpd | - | 0:2.4.6-97.el7_9.1 | fixed |
| Red Hat:rhel_aus:7.2::server | httpd | - | 0:2.4.6-40.el7_2.7 | fixed |
| Red Hat:rhel_aus:7.3::server | httpd | - | 0:2.4.6-45.el7_3.6 | fixed |
| Red Hat:rhel_aus:7.4::server | httpd | - | 0:2.4.6-67.el7_4.7 | fixed |
| Red Hat:rhel_aus:7.6::server | httpd | - | 0:2.4.6-89.el7_6.2 | fixed |
| Red Hat:rhel_e4s:7.6::server | httpd | - | 0:2.4.6-89.el7_6.2 | fixed |
| Red Hat:rhel_tus:7.6::server | httpd | - | 0:2.4.6-89.el7_6.2 | fixed |
| Red Hat:rhel_aus:7.7::server | httpd | - | 0:2.4.6-90.el7_7.1 | fixed |
| Red Hat:rhel_e4s:7.7::server | httpd | - | 0:2.4.6-90.el7_7.1 | fixed |
| Red Hat:rhel_tus:7.7::server | httpd | - | 0:2.4.6-90.el7_7.1 | fixed |
| Red Hat:enterprise_linux:7::server | httpd | - | 0:2.4.6-97.el7_9.1 | fixed |
| Red Hat:enterprise_linux:7::workstation | httpd | - | 0:2.4.6-97.el7_9.1 | fixed |