CVE-2023-27522: Apache HTTP Server: mod_proxy_uwsgi HTTP response splitting
First published: Tue Mar 07 2023(Updated: )
HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server from 2.4.30 through 2.4.55 and the uWSGI PyPI package prior to version 2.0.22. Special characters in the origin response header can truncate/split the response forwarded to the client.
Credit: security@apache.org security@apache.org security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Apache HTTP server | >=2.4.30<=2.4.55 | |
| Debian Debian Linux | =10.0 | |
| Unbit uWSGI | <2.0.22 | |
| pip/uWSGI | <2.0.22 | 2.0.22 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2023-27522
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00028.html
- https://github.com/apache/httpd/commit/d753ea76b5972a85349b68c31b59d04c60014f2d
- https://github.com/unbit/uwsgi/commit/58ee1df31fa9e9af106aaeabb82374c36b433822
- https://github.com/unbit/uwsgi/commit/acb03530aaaeaa810f28a5b64da619525940f569
- https://uwsgi-docs.readthedocs.io/en/latest/Changelog-2.0.22.html
- https://security.gentoo.org/glsa/202309-01
- https://github.com/advisories/GHSA-vcph-37mh-fqrh (Advisory)
- https://www.openwall.com/lists/oss-security/2023/03/07/2
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2176720
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2176211#c4
- https://access.redhat.com/security/cve/CVE-2023-27522
- https://access.redhat.com/errata/RHSA-2023:4628
- https://access.redhat.com/errata/RHSA-2023:4629
- https://access.redhat.com/security/cve/cve-2023-27522
- https://access.redhat.com/errata/RHSA-2023:5049
- https://access.redhat.com/errata/RHSA-2023:5050
- https://connectionsgame.io
- https://access.redhat.com/errata/RHSA-2023:6403
- https://cookie-clicker2.com
- https://geometrygame.io/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2176211#c18
- https://slopeplay.io
- https://access.redhat.com/errata/RHSA-2024:4504
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2176211#c17
- https://2048cupcakes.co.uk/
- https://muenzewerfen.de/
- https://blockblast.net/
- https://popcorngame.net/
- https://bugzilla.redhat.com/show_bug.cgi?id=2176211
Frequently Asked Questions
What is CVE-2023-27522?
CVE-2023-27522 is an HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi.
Which software versions are affected by CVE-2023-27522?
Apache HTTP Server versions 2.4.30 through 2.4.55 and the uWSGI PyPI package prior to version 2.0.22 are affected.
How can CVE-2023-27522 be exploited?
By using special characters in the origin response header, an attacker can truncate/split the response forwarded to the client.
What is the severity of CVE-2023-27522?
CVE-2023-27522 has a severity rating of 7.5 (High).
Where can I find more information about CVE-2023-27522?
You can find more information about CVE-2023-27522 on the NIST NVD, Apache HTTP Server security vulnerabilities page, and the Debian LTS-Announce mailing list.
- collector/github-advisory-latest
- alias/GHSA-vcph-37mh-fqrh
- alias/CVE-2023-27522
- collector/github-advisory
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- collector/nvd-api
- source/NVD
- agent/last-modified-date
- agent/tags
- agent/trending
- package-manager/pip
- vendor/apache
- canonical/apache http server
- version/apache http server/2.4.30
- version/apache http server/2.4.55
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- vendor/unbit
- canonical/unbit uwsgi
- package-manager/redhat