# CVE-2018-1283: apache2: In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (Sess...

CVE-2018-1283 is fixed in 6 products on 1 platform, first by apache2 2.4.29-1ubuntu4.1, released March 25, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-1283
- Priority: Routine
- CVSS: n/a (Low)
- EPSS: 0.0974
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 25, 2018

## Description

In Apache httpd 2.4.0 to 2.4.29, when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a "Session" header. This comes from the "HTTP_SESSION" variable name used by mod_session to forward its data to CGIs, since the prefix "HTTP_" is also used by the Apache HTTP Server to pass HTTP header fields, per CGI specifications.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | apache2 Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.1 | [apache2 2.4.29-1ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-2.4.29-1ubuntu4.1.md) | Mar 25, 2018 |
| Linux | apache2-bin Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.1 | [apache2-bin 2.4.29-1ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-bin-2.4.29-1ubuntu4.1.md) | Mar 25, 2018 |
| Linux | apache2-data Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.1 | [apache2-data 2.4.29-1ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-data-2.4.29-1ubuntu4.1.md) | Mar 25, 2018 |
| Linux | apache2-suexec-custom Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.1 | [apache2-suexec-custom 2.4.29-1ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-suexec-custom-2.4.29-1ubuntu4.1.md) | Mar 25, 2018 |
| Linux | apache2-suexec-pristine Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.1 | [apache2-suexec-pristine 2.4.29-1ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-suexec-pristine-2.4.29-1ubuntu4.1.md) | Mar 25, 2018 |
| Linux | apache2-utils Ubuntu 18.04.6 LTS (bionic) | 2.4.29-1ubuntu4.1 | [apache2-utils 2.4.29-1ubuntu4.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-apache2-utils-2.4.29-1ubuntu4.1.md) | Mar 25, 2018 |

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Data as of 2026-11-07T12:40:37Z 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