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CVE-2021-40438

Status Candidate

Overview

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

Related Files

Gentoo Linux Security Advisory 202208-20
Posted Aug 15, 2022
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202208-20 - Multiple vulnerabilities have been discovered in Apache Webserver, the worst of which could result in remote code execution. Versions less than 2.4.54 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438, CVE-2021-41524, CVE-2021-41773, CVE-2021-42013, CVE-2021-44224, CVE-2021-44790, CVE-2022-22719, CVE-2022-22720, CVE-2022-22721, CVE-2022-23943
SHA-256 | 09faf82799a2bf38cabe52ae6e5241cdb6c0783b19a0355526c5faf16d5eadc3
Debian Security Advisory 4982-1
Posted Oct 28, 2021
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4982-1 - Several vulnerabilities have been found in the Apache HTTP server, which could result in denial of service. In addition a vulnerability was discovered in mod_proxy with which an attacker could trick the server to forward requests to arbitrary origin servers.

tags | advisory, web, denial of service, arbitrary, vulnerability
systems | linux, debian
advisories | CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438
SHA-256 | 7db80ce9950cf39bde931c5a0d161d513946d1d1b1ee44990405a9c7cee50a76
Red Hat Security Advisory 2021-3856-01
Posted Oct 14, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3856-01 - The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Issues addressed include a server-side request forgery vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-40438
SHA-256 | 21442766b306af4387511d5a671db6cbb71747bfe90874ec7ecca6f39a40e53f
Red Hat Security Advisory 2021-3836-01
Posted Oct 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3836-01 - The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Issues addressed include a server-side request forgery vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-40438
SHA-256 | be8a17b1e3edc6d621e9131cef9320789e15e828101d5ee44ea6bf76a43a5620
Red Hat Security Advisory 2021-3837-01
Posted Oct 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3837-01 - The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Issues addressed include a server-side request forgery vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-40438
SHA-256 | fff60d8d704736ae5416e471bbae9dd65d06445e1dbfaf9ea9bba9b8b7da8f27
Red Hat Security Advisory 2021-3816-01
Posted Oct 13, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3816-01 - The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Issues addressed include heap overflow and server-side request forgery vulnerabilities.

tags | advisory, web, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2021-26691, CVE-2021-40438
SHA-256 | 33581e2aca3ce7526056bde330d23247fdbd1a56f8645b9244de6778e060eeac
Red Hat Security Advisory 2021-3754-01
Posted Oct 11, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3754-01 - The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Issues addressed include a server-side request forgery vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-40438
SHA-256 | a1770e3378bc7eda415851082748f2fd9d089872f0c8a4a51af5add6d181871e
Red Hat Security Advisory 2021-3746-01
Posted Oct 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3746-01 - This release adds the new Apache HTTP Server 2.4.37 Service Pack 9 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 8 and includes an important security update. Issues addressed include a server-side request forgery vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-40438
SHA-256 | eb50cb5a29a903fd0e9b3dd45ef7f99639d69bacb02254d7fa0bf64e76398fb3
Red Hat Security Advisory 2021-3745-01
Posted Oct 8, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-3745-01 - Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 Service Pack 9 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 8 and includes an important security update. Issues addressed include a server-side request forgery vulnerability.

tags | advisory, web
systems | linux, redhat
advisories | CVE-2021-40438
SHA-256 | 94b0c5d8e07078905e9953a5c56b01c0913c835fdae65650b113778ad372dfb7
Ubuntu Security Notice USN-5090-4
Posted Sep 29, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5090-4 - USN-5090-1 fixed vulnerabilities in Apache HTTP Server. One of the upstream fixes introduced a regression in UDS URIs. This update fixes the problem. James Kettle discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain crafted methods. A remote attacker could possibly use this issue to perform request splitting or cache poisoning attacks. It was discovered that the Apache HTTP Server incorrectly handled certain malformed requests. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. Li Zhi Xin discovered that the Apache mod_proxy_uwsgi module incorrectly handled certain request uri-paths. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 21.04. It was discovered that the Apache HTTP Server incorrectly handled escaping quotes. If the server was configured with third-party modules, a remote attacker could use this issue to cause the server to crash, resulting in a denial of service, or possibly execute arbitrary code. It was discovered that the Apache mod_proxy module incorrectly handled certain request uri-paths. A remote attacker could possibly use this issue to cause the server to forward requests to arbitrary origin servers. Various other issues were also addressed.

tags | advisory, remote, web, denial of service, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438
SHA-256 | 97566fcdf572aabba3700b134cb12c430056ecb69fad0c05e485f33bb178308a
Ubuntu Security Notice USN-5090-3
Posted Sep 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5090-3 - USN-5090-1 fixed vulnerabilities in Apache HTTP Server. One of the upstream fixes introduced a regression in UDS URIs. This update fixes the problem.

tags | advisory, remote, web, denial of service, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438
SHA-256 | b581416306f3dd476e571d54877a550435c22900a370f6c91efbf9d6ff8a914f
Ubuntu Security Notice USN-5090-2
Posted Sep 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5090-2 - USN-5090-1 fixed several vulnerabilities in Apache. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. It was discovered that the Apache HTTP Server incorrectly handled certain malformed requests. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, web, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2021-34798, CVE-2021-39275, CVE-2021-40438
SHA-256 | 341b8ef0fe4e6777bab5fa98b857529884200d7119257e755b6ca149890c4518
Ubuntu Security Notice USN-5090-1
Posted Sep 28, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5090-1 - James Kettle discovered that the Apache HTTP Server HTTP/2 module incorrectly handled certain crafted methods. A remote attacker could possibly use this issue to perform request splitting or cache poisoning attacks. It was discovered that the Apache HTTP Server incorrectly handled certain malformed requests. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, web, denial of service
systems | linux, ubuntu
advisories | CVE-2021-33193, CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438
SHA-256 | 4f7aac22cc9fea438546a6e2165f1fd88e03efade01784bf4e244e2cf8f08093
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