Description
null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash the server via a malicious request.
Users are recommended to upgrade to version 2.4.60, which fixes this issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | 2.4.0 – ≤ 2.4.59 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | apache2 | 2.4.60-1 | — |
| Debian 13 | apache2 | 2.4.60-1 | — |
| Debian 12 | apache2 | 2.4.61-1~deb12u1 | DSA-5729-1 |
| Debian 11 | apache2 | 2.4.61-1~deb11u1 | DSA-5729-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | apache2 | 2.4.58-1ubuntu8.2 | USN-6885-1 |
| Ubuntu 22.04 LTS | apache2 | 2.4.52-1ubuntu4.10 | USN-6885-1 |
| Ubuntu 20.04 LTS | apache2 | 2.4.41-4ubuntu3.19 | USN-6885-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | apache2 | 2.4.41-4ubuntu3.23+esm3 | USN-8338-1 |
| Ubuntu Pro 18.04 LTS | apache2 | 2.4.29-1ubuntu4.27+esm3 | USN-8338-1, USN-6885-3 |
| Ubuntu Pro 16.04 LTS | apache2 | 2.4.18-2ubuntu3.17+esm13 | USN-8338-1, USN-6885-3 |
| Ubuntu Pro 14.04 LTS | apache2 | 2.4.7-1ubuntu4.22+esm12 | USN-8338-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | httpd +8 | 2.4.57-11.el9_4 | RHSA-2024:4726 |
| RHEL 9 | mod_ssl +1 | 1:2.4.57-11.el9_4 | RHSA-2024:4726 |
| RHEL 8 | httpd +6 | 2.4.37-65.module+el8.10.0+22069+b47f5c72.1 | RHSA-2024:4720 |
| RHEL 8 | mod_http2 | 1.15.7-10.module+el8.10.0+21653+eaff63f0 | RHSA-2024:4720 |
| RHEL 8 | mod_md | 1:2.0.8-8.module+el8.9.0+19080+567b90f8 | RHSA-2024:4720 |
| RHEL 8 | mod_ssl +1 | 1:2.4.37-65.module+el8.10.0+22069+b47f5c72.1 | RHSA-2024:4720 |
Show 13 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | httpd +8 | 2.4.53-11.el9_2.8 | RHSA-2024:4862 |
| RHEL 9.2 EUS | mod_ssl +1 | 1:2.4.53-11.el9_2.8 | RHSA-2024:4862 |
| RHEL 9.0 E4S | httpd +7 | 2.4.51-7.el9_0.7 | RHSA-2024:4863 |
| RHEL 9.0 E4S | mod_ssl +1 | 1:2.4.51-7.el9_0.7 | RHSA-2024:4863 |
| RHEL 8.8 EUS | httpd +6 | 2.4.37-56.module+el8.8.0+22079+e03f6970.8 | RHSA-2024:4719 |
| RHEL 8.8 EUS | mod_http2 | 1.15.7-8.module+el8.8.0+21773+20528f83.5 | RHSA-2024:4719 |
| RHEL 8.8 EUS | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2024:4719 |
| RHEL 8.8 EUS | mod_ssl +1 | 1:2.4.37-56.module+el8.8.0+22079+e03f6970.8 | RHSA-2024:4719 |
| RHEL 8.6 TUS | httpd +6 | 2.4.37-47.module+el8.6.0+22124+21ed7001.9 | RHSA-2024:4827 |
| RHEL 8.6 TUS | mod_http2 | 1.15.7-5.module+el8.6.0+21746+f601aac0.3 | RHSA-2024:4827 |
| RHEL 8.6 TUS | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2024:4827 |
| RHEL 8.6 TUS | mod_ssl +1 | 1:2.4.37-47.module+el8.6.0+22124+21ed7001.9 | RHSA-2024:4827 |
| RHEL 8.6 E4S | httpd +6 | 2.4.37-47.module+el8.6.0+22124+21ed7001.9 | RHSA-2024:4827 |
| RHEL 8.6 E4S | mod_http2 | 1.15.7-5.module+el8.6.0+21746+f601aac0.3 | RHSA-2024:4827 |
| RHEL 8.6 E4S | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2024:4827 |
| RHEL 8.6 E4S | mod_ssl +1 | 1:2.4.37-47.module+el8.6.0+22124+21ed7001.9 | RHSA-2024:4827 |
| RHEL 8.6 AUS | httpd +6 | 2.4.37-47.module+el8.6.0+22124+21ed7001.9 | RHSA-2024:4827 |
| RHEL 8.6 AUS | mod_http2 | 1.15.7-5.module+el8.6.0+21746+f601aac0.3 | RHSA-2024:4827 |
| RHEL 8.6 AUS | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2024:4827 |
| RHEL 8.6 AUS | mod_ssl +1 | 1:2.4.37-47.module+el8.6.0+22124+21ed7001.9 | RHSA-2024:4827 |
| RHEL 8.4 TUS | httpd +6 | 2.4.37-39.module+el8.4.0+22127+467cc488.8 | RHSA-2024:4830 |
| RHEL 8.4 TUS | mod_http2 | 1.15.7-3.module+el8.4.0+21747+916a74df.3 | RHSA-2024:4830 |
| RHEL 8.4 TUS | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2024:4830 |
| RHEL 8.4 TUS | mod_ssl +1 | 1:2.4.37-39.module+el8.4.0+22127+467cc488.8 | RHSA-2024:4830 |
| RHEL 8.4 E4S | httpd +6 | 2.4.37-39.module+el8.4.0+22127+467cc488.8 | RHSA-2024:4830 |
| RHEL 8.4 E4S | mod_http2 | 1.15.7-3.module+el8.4.0+21747+916a74df.3 | RHSA-2024:4830 |
| RHEL 8.4 E4S | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2024:4830 |
| RHEL 8.4 E4S | mod_ssl +1 | 1:2.4.37-39.module+el8.4.0+22127+467cc488.8 | RHSA-2024:4830 |
| RHEL 8.4 AUS | httpd +6 | 2.4.37-39.module+el8.4.0+22127+467cc488.8 | RHSA-2024:4830 |
| RHEL 8.4 AUS | mod_http2 | 1.15.7-3.module+el8.4.0+21747+916a74df.3 | RHSA-2024:4830 |
| RHEL 8.4 AUS | mod_md | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | RHSA-2024:4830 |
| RHEL 8.4 AUS | mod_ssl +1 | 1:2.4.37-39.module+el8.4.0+22127+467cc488.8 | RHSA-2024:4830 |
| RHEL 8.2 AUS | httpd +6 | 2.4.37-21.module+el8.2.0+22128+68c62a5c.8 | RHSA-2024:4820 |
| RHEL 8.2 AUS | mod_http2 | 1.11.3-3.module+el8.2.0+22123+cf5a147c.4 | RHSA-2024:4820 |
| RHEL 8.2 AUS | mod_md | 1:2.0.8-7.module+el8.2.0+5531+7e4d69a2 | RHSA-2024:4820 |
| RHEL 8.2 AUS | mod_ssl +1 | 1:2.4.37-21.module+el8.2.0+22128+68c62a5c.8 | RHSA-2024:4820 |
| RHEL 7.7 AUS | httpd +5 | 2.4.6-90.el7_7.4 | RHSA-2024:4938 |
| RHEL 7.7 AUS | mod_ssl +1 | 1:2.4.6-90.el7_7.4 | RHSA-2024:4938 |
| RHEL 7 ELS | httpd +5 | 2.4.6-99.el7_9.2 | RHSA-2024:4943 |
| RHEL 7 ELS | mod_ssl +1 | 1:2.4.6-99.el7_9.2 | RHSA-2024:4943 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-httpd +6 | 2.4.57-13.el7jbcs | RHSA-2024:5239 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_http2 | 1.15.19-41.el7jbcs | RHSA-2024:5239 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_jk +1 | 1.2.49-11.redhat_1.el7jbcs | RHSA-2024:5239 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_md | 1:2.4.24-11.el7jbcs | RHSA-2024:5239 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_proxy_cluster | 1.3.20-8.el7jbcs | RHSA-2024:5239 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_security | 2.9.3-40.el7jbcs | RHSA-2024:5239 |
| Red Hat JBoss Core Services 1 | jbcs-httpd24-mod_ssl +1 | 1:2.4.57-13.el7jbcs | RHSA-2024:5239 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | httpd +8 | 2.4.57-11.el9_4 | ALSA-2024:4726 |
| AlmaLinux 9 | mod_ssl +1 | 1:2.4.57-11.el9_4 | ALSA-2024:4726 |
| AlmaLinux 8 | httpd +6 | 2.4.37-65.module_el8.10.0+3872+9b8ab21e.1 | ALSA-2024:4720 |
| AlmaLinux 8 | mod_http2 | 1.15.7-10.module_el8.10.0+3832+564e7653 | ALSA-2024:4720 |
| AlmaLinux 8 | mod_md | 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa | ALSA-2024:4720 |
| AlmaLinux 8 | mod_ssl +1 | 1:2.4.37-65.module_el8.10.0+3872+9b8ab21e.1 | ALSA-2024:4720 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | httpd | 2.4.57-11.el9_4 | RLSA-2024:4726 |
| Rocky Linux 8 | httpd | 2.4.37-65.module+el8.10.0+1830+22f0c9e0 | RLSA-2024:4720 |
| Rocky Linux 8 | mod_http2 | 1.15.7-10.module+el8.10.0+1775+6b057638 | RLSA-2024:4720 |
| Rocky Linux 8 | mod_md | 1:2.0.8-8.module+el8.9.0+1370+89cc8ad5 | RLSA-2024:4720 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2024:2624-1, SUSE-SU-2024:2405-1 |
| SLES 15 SP6 | apache2-devel +4 | 2.4.58-150600.5.11.1 | SUSE-SU-2024:2405-1 |
| SLES 15 SP5 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:2624-1 |
| SLES 15 SP4 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:2624-1 |
| SLES 15 SP3 | apache2 | 2.4.51-150200.3.79.1 | SUSE-SU-2025:02241-1 |
| SLES 12 SP5 | apache2 +1 | 2.4.51-35.51.1 | SUSE-SU-2024:2436-1 |
Show 10 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP5 | apache2 | 2.4.66-150400.6.57.1 | SUSE-SU-2026:2686-1 |
| SLES for SAP 15 SP4 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:2624-1 |
| SLES for SAP 15 SP3 | apache2 | 2.4.51-150200.3.79.1 | SUSE-SU-2025:02241-1 |
| SLES for SAP 12 SP5 | apache2 +1 | 2.4.51-35.51.1 | SUSE-SU-2024:2436-1 |
| SLE HPC 15 SP5 | apache2 | 2.4.66-150400.6.57.1 | SUSE-SU-2026:2686-1 |
| SLE HPC 15 SP4 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2026:2686-1, SUSE-SU-2024:2624-1 |
| SLE HPC 15 SP3 | apache2 | 2.4.51-150200.3.79.1 | SUSE-SU-2025:02241-1 |
| SUSE Manager Server 4.3 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2024:2624-1 |
| SUSE Manager Proxy 4.3 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2024:2624-1 |
| SUSE Enterprise Storage 7.1 | apache2 | 2.4.51-150200.3.79.1 | SUSE-SU-2025:02241-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | apache2 | 2.4.61-1.1 | openSUSE-SU-2024:14116-1 |
| openSUSE Leap 15.6 | apache2 +6 | 2.4.58-150600.5.11.1 | SUSE-SU-2024:2405-1 |
| openSUSE Leap 15.5 | apache2 | 2.4.51-150400.6.29.1 | SUSE-SU-2024:2624-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | apache2 | 2.4.60-r0 | — |
| Alpine v3.23 | apache2 | 2.4.60-r0 | — |
| Alpine v3.22 | apache2 | 2.4.60-r0 | — |
| Alpine v3.21 | apache2 | 2.4.60-r0 | — |
| Alpine v3.20 | apache2 | 2.4.60-r0 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | apache2 | 2.4.60-r0 | — |
| Alpine v3.18 | apache2 | 2.4.60-r0 | — |
| Alpine v3.17 | apache2 | 2.4.60-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | httpd +8 | 2.4.61-1.amzn2023 | ALAS2023-2024-656 |
| Amazon Linux 2023 | mod_ssl +1 | 1:2.4.61-1.amzn2023 | ALAS2023-2024-656 |
| Amazon Linux 2 | httpd +7 | 2.4.61-1.amzn2.0.1 | ALAS2-2024-2594 |
| Amazon Linux 2 | mod_ssl +1 | 1:2.4.61-1.amzn2.0.1 | ALAS2-2024-2594 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | httpd +8 | 2.4.57-11.0.1.el9_4 | ELSA-2024-4726 |
| Oracle Linux 9 | mod_ssl +1 | 1:2.4.57-11.0.1.el9_4 | ELSA-2024-4726 |
| Oracle Linux 8 | httpd +6 | 2.4.37-65.0.1.module+el8.10.0+90368+a557a4bf.1 | ELSA-2024-4720 |
| Oracle Linux 8 | mod_http2 | 1.15.7-10.module+el8.10.0+90327+96b8ea28 | ELSA-2024-4720 |
| Oracle Linux 8 | mod_md | 1:2.0.8-8.module+el8.9.0+90011+2f9c6a23 | ELSA-2024-4720 |
| Oracle Linux 8 | mod_ssl +1 | 1:2.4.37-65.0.1.module+el8.10.0+90368+a557a4bf.1 | ELSA-2024-4720 |
| Oracle Linux 7 | httpd +5 | 2.4.6-99.0.3.el7_9.1 | ELSA-2024-4943 |
| Oracle Linux 7 | mod_ssl +1 | 1:2.4.6-99.0.3.el7_9.1 | ELSA-2024-4943 |
Advisories 36
- WID-SEC-2024-1504 Apache HTTP Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- ALSA-2024:4726 Important: httpd security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:4720 Important: httpd:2.4 security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:5239 Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.57 SP5 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4943 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4863 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4938 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4862 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4830 Red Hat Security Advisory: httpd:2.4 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4827 Red Hat Security Advisory: httpd:2.4 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4726 Red Hat Security Advisory: httpd security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4820 Red Hat Security Advisory: httpd:2.4 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4720 Red Hat Security Advisory: httpd:2.4 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- RHSA-2024:4719 Red Hat Security Advisory: httpd:2.4 security update Red Hat Security Advisories (RHSA) · Sep 21, 2026
- SUSE-SU-2026:2686-1 Security update for apache2 SUSE / openSUSE Security Updates · Jul 1, 2026
- USN-6885-3 apache2 vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- USN-8338-1 apache2 vulnerabilities Ubuntu Security Notices (USN) · May 29, 2026
- USN-6885-1 apache2 vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- WID-SEC-2024-3291 Apple macOS: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 6, 2026
- DSA-5729-1 apache2 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- RLSA-2024:4726 Important: httpd security update Rocky Linux Security Advisories · Feb 5, 2026
- SUSE-SU-2024:2436-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14116-1 apache2-2.4.61-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2624-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2025:02241-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2405-1 Security update for apache2 SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2025-1572 Oracle Fusion Middleware: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 15, 2025
- RLSA-2024:4720 Important: httpd:2.4 security update Rocky Linux Security Advisories · May 7, 2025
- NCSC-2024-0426 Kwetsbaarheden verholpen in Apple MacOS NCSC-NL (Netherlands) · Oct 30, 2024
- NCSC-2024-0411 Kwetsbaarheden verholpen in Oracle Database producten NCSC-NL (Netherlands) · Oct 17, 2024
- ELSA-2024-4943 Important: httpd security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 13, 2024
- ELSA-2024-4726 Important: httpd security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 23, 2024
- ELSA-2024-4720 Important: httpd:2.4 security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 23, 2024
- ALAS2023-2024-656 Important: httpd security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jul 22, 2024
- ALAS2-2024-2594 Important: httpd security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jul 22, 2024
- NCSC-2024-0275 Kwetsbaarheden verholpen in Apache HHTP-server NCSC-NL (Netherlands) · Jul 2, 2024