CVE-2023-38709 Apache HTTP Server: HTTP response splitting
High 7.3
Published
Updated
Check this codebase for CVE-2023-38709 and fix it if it is affected.
What it is: CVE-2023-38709 is a high-severity vulnerability in Apache Http Server, published on 4 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2023-38709 in the wild and no public exploit code.
Affected packages and fixed versions:
- apache (Bitnami): affected all versions; fixed in 2.4.59
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-38709/ (Markdown: https://insights.sbomify.com/CVE-2023-38709/index.md)
Attackers can split HTTP responses via faulty input validation, potentially modifying data or bypassing security controls in Apache HTTP Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-38709?
CVE-2023-38709 is a high-severity vulnerability in Apache Http Server, published on 4 Apr 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Faulty input validation in the core of Apache allows malicious or exploitable backend/content generators to split HTTP responses.
This issue affects Apache HTTP Server: through 2.4.58.
Weakness: CWE-1284
Which versions are affected by CVE-2023-38709?
1 open source package ship an affected version, including apache. It affects 7 products.
| Package | Affected | Fixed in |
|---|---|---|
apache Bitnami | All versions | 2.4.59 |
Linux distribution packages (37)
httpd AlmaLinux:8 | All versions | 2.4.37-65.module_el8.10.0+3860+a6e26e50 |
httpd-devel AlmaLinux:8 | All versions | 2.4.37-65.module_el8.10.0+3860+a6e26e50 |
httpd-filesystem AlmaLinux:8 | All versions | 2.4.37-65.module_el8.10.0+3860+a6e26e50 |
httpd-manual AlmaLinux:8 | All versions | 2.4.37-65.module_el8.10.0+3860+a6e26e50 |
httpd-tools AlmaLinux:8 | All versions | 2.4.37-65.module_el8.10.0+3860+a6e26e50 |
mod_http2 AlmaLinux:8 | All versions | 1.15.7-10.module_el8.10.0+3832+564e7653 |
mod_ldap AlmaLinux:8 | All versions | 2.4.37-65.module_el8.10.0+3860+a6e26e50 |
mod_md AlmaLinux:8 | All versions | 1:2.0.8-8.module_el8.6.0+2872+fe0ff7aa |
mod_md AlmaLinux:8 | All versions | 1:2.0.8-8.module_el8.6.0+3031+fb177b09 |
mod_proxy_html AlmaLinux:8 | All versions | 1:2.4.37-65.module_el8.10.0+3860+a6e26e50 |
mod_session AlmaLinux:8 | All versions | 2.4.37-65.module_el8.10.0+3860+a6e26e50 |
mod_ssl AlmaLinux:8 | All versions | 1:2.4.37-65.module_el8.10.0+3860+a6e26e50 |
httpd Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd-devel Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd-filesystem Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd-manual Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd-tools Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd-tools-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_http2 Red Hat:enterprise_linux:8::appstream | All versions | 0:1.15.7-10.module+el8.10.0+21653+eaff63f0 |
mod_http2-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.15.7-10.module+el8.10.0+21653+eaff63f0 |
mod_http2-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:1.15.7-10.module+el8.10.0+21653+eaff63f0 |
mod_ldap Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_ldap-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_md Red Hat:enterprise_linux:8::appstream | All versions | 1:2.0.8-8.module+el8.9.0+19080+567b90f8 |
mod_md-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 1:2.0.8-8.module+el8.9.0+19080+567b90f8 |
mod_md-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 1:2.0.8-8.module+el8.9.0+19080+567b90f8 |
mod_proxy_html Red Hat:enterprise_linux:8::appstream | All versions | 1:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_proxy_html-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 1:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_session Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_session-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_ssl Red Hat:enterprise_linux:8::appstream | All versions | 1:2.4.37-65.module+el8.10.0+21982+14717793 |
mod_ssl-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 1:2.4.37-65.module+el8.10.0+21982+14717793 |
httpd Rocky Linux:8 | All versions | 0:2.4.37-65.module+el8.10.0+1830+22f0c9e0 |
mod_http2 Rocky Linux:8 | All versions | 0:1.15.7-10.module+el8.10.0+1775+6b057638 |
mod_md Rocky Linux:8 | All versions | 1:2.0.8-8.module+el8.9.0+1370+89cc8ad5 |
Products include Apache Http Server, Apple Macos, Broadcom Fabric Operating System, Debian Debian Linux, Fedoraproject Fedora, Netapp Ontap and 1 more.
How do I fix CVE-2023-38709?
Upgrade apache to 2.4.59 or later.
Is CVE-2023-38709 being exploited?
There is no known exploitation of CVE-2023-38709 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Apache Http Server
Sources
Also known as ALPINE-CVE-2023-38709, ALSA-2024:4197, AZL-38605, AZL-39190, BELL-CVE-2023-38709, BIT-apache-2023-38709 and 6 more.