# CVE-2006-20001: apache2: A carefully crafted If: request header can cause a memory read, or write ofa single zero byte, in a pool (heap) memor...

CVE-2006-20001 is fixed in 30 products on 1 platform, first by apache2 2.4.29-1ubuntu4.26, released January 17, 2023. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2006-20001
- Priority: High
- CVSS: 7.5 (Medium)
- EPSS: 0.0358
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 17, 2023

## Description

A carefully crafted If: request header can cause a memory read, or write ofa single zero byte, in a pool (heap) memory location beyond the headervalue sent. This could cause the process to crash.This issue affects Apache HTTP Server 2.4.54 and earlier.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | apache2 Debian 11.6 (bullseye) | 2.4.56-1~deb11u1 | [DSA-5376-1](https://patchblox.com/security/data/fix/linux/dsa-5376-1.md) | Mar 20, 2023 |
| Linux | apache2 Debian 12.15 (bookworm) | 2.4.55-1 | [DEBIAN-CVE-2006-20001](https://patchblox.com/security/data/fix/linux/debian-cve-2006-20001.md) | Jan 17, 2023 |
| Linux | apache2 Debian 13.5 (trixie) | 2.4.55-1 | [DEBIAN-CVE-2006-20001](https://patchblox.com/security/data/fix/linux/debian-cve-2006-20001.md) | Jan 17, 2023 |
| Linux | apache2 Debian 14 | 2.4.55-1 | [DEBIAN-CVE-2006-20001](https://patchblox.com/security/data/fix/linux/debian-cve-2006-20001.md) | Jan 17, 2023 |
| Linux | apache2 Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.26 | [apache2 2.4.29-1ubuntu4.26](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-2.4.29-1ubuntu4.26.md) | Jan 17, 2023 |
| Linux | apache2 Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [apache2 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-apache2-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | apache2 Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [apache2 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-apache2-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | apache2 Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [apache2 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-apache2-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2 Ubuntu 25.04 (plucky) | 2.4.55-1ubuntu1 | [apache2 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-apache2-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-bin Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.26 | [apache2-bin 2.4.29-1ubuntu4.26](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-bin-2.4.29-1ubuntu4.26.md) | Jan 17, 2023 |
| Linux | apache2-bin Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [apache2-bin 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-apache2-bin-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | apache2-bin Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [apache2-bin 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-apache2-bin-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | apache2-bin Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [apache2-bin 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-apache2-bin-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-bin Ubuntu 25.04 (plucky) | 2.4.55-1ubuntu1 | [apache2-bin 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-apache2-bin-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-data Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.26 | [apache2-data 2.4.29-1ubuntu4.26](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-data-2.4.29-1ubuntu4.26.md) | Jan 17, 2023 |
| Linux | apache2-data Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [apache2-data 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-apache2-data-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | apache2-data Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [apache2-data 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-apache2-data-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | apache2-data Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [apache2-data 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-apache2-data-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-data Ubuntu 25.04 (plucky) | 2.4.55-1ubuntu1 | [apache2-data 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-apache2-data-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-suexec-custom Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.26 | [apache2-suexec-custom 2.4.29-1ubuntu4.26](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-suexec-custom-2.4.29-1ubuntu4.26.md) | Jan 17, 2023 |
| Linux | apache2-suexec-custom Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [apache2-suexec-custom 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-apache2-suexec-custom-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | apache2-suexec-custom Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [apache2-suexec-custom 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-apache2-suexec-custom-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | apache2-suexec-custom Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [apache2-suexec-custom 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-apache2-suexec-custom-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-suexec-custom Ubuntu 25.04 (plucky) | 2.4.55-1ubuntu1 | [apache2-suexec-custom 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-apache2-suexec-custom-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-suexec-pristine Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.26 | [apache2-suexec-pristine 2.4.29-1ubuntu4.26](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-suexec-pristine-2.4.29-1ubuntu4.26.md) | Jan 17, 2023 |
| Linux | apache2-suexec-pristine Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [apache2-suexec-pristine 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-apache2-suexec-pristine-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | apache2-suexec-pristine Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [apache2-suexec-pristine 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-apache2-suexec-pristine-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | apache2-suexec-pristine Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [apache2-suexec-pristine 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-apache2-suexec-pristine-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-suexec-pristine Ubuntu 25.04 (plucky) | 2.4.55-1ubuntu1 | [apache2-suexec-pristine 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-apache2-suexec-pristine-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-utils Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.26 | [apache2-utils 2.4.29-1ubuntu4.26](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-utils-2.4.29-1ubuntu4.26.md) | Jan 17, 2023 |
| Linux | apache2-utils Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [apache2-utils 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-apache2-utils-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | apache2-utils Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [apache2-utils 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-apache2-utils-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | apache2-utils Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [apache2-utils 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-apache2-utils-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | apache2-utils Ubuntu 25.04 (plucky) | 2.4.55-1ubuntu1 | [apache2-utils 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-apache2-utils-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | httpd RHEL 8 | 0:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd almalinux 8 | 2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd ol 8 | 0:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | httpd ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd rocky 8 | 0:2.4.37-51.module+el8.7.0+1059+126e9251 | [RLSA-2023:0852](https://patchblox.com/security/data/fix/linux/rlsa-2023-0852.md) | Feb 22, 2023 |
| Linux | httpd rocky 9 | 0:2.4.53-7.el9_1.1 | [RLSA-2023:0970](https://patchblox.com/security/data/fix/linux/rlsa-2023-0970.md) | Apr 6, 2023 |
| Linux | httpd-core RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-core almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-core amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-core ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-core-debuginfo amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-debuginfo amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-debugsource amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-devel RHEL 8 | 0:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-devel RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-devel almalinux 8 | 2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-devel almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-devel amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-devel ol 8 | 0:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | httpd-devel ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-filesystem RHEL 8 | 0:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-filesystem RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-filesystem almalinux 8 | 2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-filesystem almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-filesystem amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-filesystem ol 8 | 0:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | httpd-filesystem ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-manual RHEL 8 | 0:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-manual RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-manual almalinux 8 | 2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-manual almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-manual amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-manual ol 8 | 0:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | httpd-manual ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-tools RHEL 8 | 0:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-tools RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-tools almalinux 8 | 2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | httpd-tools almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-tools amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | httpd-tools ol 8 | 0:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | httpd-tools ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | httpd-tools-debuginfo amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | libapache2-mod-md Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [libapache2-mod-md 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libapache2-mod-md-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | libapache2-mod-md Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [libapache2-mod-md 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libapache2-mod-md-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | libapache2-mod-md Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [libapache2-mod-md 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libapache2-mod-md-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | libapache2-mod-proxy-uwsgi Ubuntu 20.04 LTS (focal) | 2.4.41-4ubuntu3.13 | [libapache2-mod-proxy-uwsgi 2.4.41-4ubuntu3.13](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libapache2-mod-proxy-uwsgi-2.4.41-4ubuntu3.13.md) | Jan 17, 2023 |
| Linux | libapache2-mod-proxy-uwsgi Ubuntu 22.04.1 LTS (jammy) | 2.4.52-1ubuntu4.3 | [libapache2-mod-proxy-uwsgi 2.4.52-1ubuntu4.3](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libapache2-mod-proxy-uwsgi-2.4.52-1ubuntu4.3.md) | Jan 17, 2023 |
| Linux | libapache2-mod-proxy-uwsgi Ubuntu 24.10 (oracular) | 2.4.55-1ubuntu1 | [libapache2-mod-proxy-uwsgi 2.4.55-1ubuntu1](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libapache2-mod-proxy-uwsgi-2.4.55-1ubuntu1.md) | Jan 16, 2026 |
| Linux | mod_http2 RHEL 8 | 0:1.15.7-5.module+el8.6.0+13996+01710940 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_http2 almalinux 8 | 1.15.7-5.module_el8.6.0+2872+fe0ff7aa | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_http2 ol 8 | 0:1.15.7-5.module+el8.6.0+20548+01710940 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_http2 rocky 8 | 0:1.15.7-5.module+el8.6.0+823+f143cee1 | [RLSA-2023:0852](https://patchblox.com/security/data/fix/linux/rlsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_ldap RHEL 8 | 0:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_ldap RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_ldap almalinux 8 | 2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_ldap almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_ldap amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_ldap ol 8 | 0:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_ldap ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_ldap-debuginfo amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_lua RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_lua almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_lua amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_lua ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_lua-debuginfo amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_md RHEL 8 | 1:2.0.8-8.module+el8.3.0+6814+67d1e611 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_md almalinux 8 | 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_md ol 8 | 1:2.0.8-8.module+el8.5.0+20475+4f6a8fd5 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_md rocky 8 | 1:2.0.8-8.module+el8.5.0+695+1fa8055e | [RLSA-2023:0852](https://patchblox.com/security/data/fix/linux/rlsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_proxy_html RHEL 8 | 1:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_proxy_html RHEL 9 | 1:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_proxy_html almalinux 8 | 1:2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_proxy_html almalinux 9 | 1:2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_proxy_html amzn 2023 | 1:2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_proxy_html ol 8 | 1:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_proxy_html ol 9 | 1:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_proxy_html-debuginfo amzn 2023 | 1:2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_session RHEL 8 | 0:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_session RHEL 9 | 0:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_session almalinux 8 | 2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_session almalinux 9 | 2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_session amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_session ol 8 | 0:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_session ol 9 | 0:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_session-debuginfo amzn 2023 | 2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_ssl RHEL 8 | 1:2.4.37-51.module+el8.7.0+18026+7b169787.1 | [RHSA-2023:0852](https://patchblox.com/security/data/fix/linux/rhsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_ssl RHEL 9 | 1:2.4.53-7.el9_1.1 | [RHSA-2023:0970](https://patchblox.com/security/data/fix/linux/rhsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_ssl almalinux 8 | 1:2.4.37-51.module_el8.7.0+3405+9516b832.1 | [ALSA-2023:0852](https://patchblox.com/security/data/fix/linux/alsa-2023-0852.md) | Feb 21, 2023 |
| Linux | mod_ssl almalinux 9 | 1:2.4.53-7.el9_1.1 | [ALSA-2023:0970](https://patchblox.com/security/data/fix/linux/alsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_ssl amzn 2023 | 1:2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |
| Linux | mod_ssl ol 8 | 1:2.4.37-51.0.1.module+el8.7.0+20923+af3b70dd.1 | [ELSA-2023-0852](https://patchblox.com/security/data/fix/linux/elsa-2023-0852.md) | Feb 22, 2023 |
| Linux | mod_ssl ol 9 | 1:2.4.53-7.0.1.el9_1.1 | [ELSA-2023-0970](https://patchblox.com/security/data/fix/linux/elsa-2023-0970.md) | Feb 28, 2023 |
| Linux | mod_ssl-debuginfo amzn 2023 | 1:2.4.55-1.amzn2023 | [ALAS2023-2023-115](https://patchblox.com/security/data/fix/linux/alas2023-2023-115.md) | Mar 6, 2023 |

---

Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

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