RHSA-2024:3121MediumCVSS 7.5

Red Hat Security Advisory: httpd:2.4 security update

Published
May 22, 2024
Last Modified
August 4, 2026

🔗 CVE IDs covered (2)

CVE-2023-31122 →CVE-2023-45802 →

📋 Description

CVE-2023-31122 — httpd: mod_macro: out-of-bounds read vulnerability CVE-2023-45802 — mod_http2: reset requests exhaust memory (incomplete fix of CVE-2023-44487)

🎯 Affected products86

  • Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.src (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-debugsource-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-devel-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-filesystem-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.noarch (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-manual-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.noarch (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.s390x (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • httpd-tools-debuginfo-0:2.4.37-64.module+el8.10.0+21332+dfb1b40e.x86_64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mod_http2-0:1.15.7-10.module+el8.10.0+21653+eaff63f0.aarch64 (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • mod_http2-0:1.15.7-10.module+el8.10.0+21653+eaff63f0.ppc64le (httpd:2.4) as a component of Red Hat Enterprise Linux AppStream (v. 8)
  • +56 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the updated packages, the httpd daemon will be restarted automatically. Workaround: Disabling mod_macro and restarting httpd or making sure the macros used are smaller than the required length to trigger this vulnerability will mitigate this flaw. Furthermore, it's unlikely that a very long macro with the length needed to trigger this issue is being used. Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 References (7)