CVE-2021-40438
Published: 16 September 2021
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.
Priority
Status
Package | Release | Status |
---|---|---|
apache2 Launchpad, Ubuntu, Debian |
impish |
Released
(2.4.48-3.1ubuntu2)
|
upstream |
Released
(2.4.49-1)
|
|
trusty |
Not vulnerable
(code not present)
|
|
xenial |
Released
(2.4.18-2ubuntu3.17+esm3)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
bionic |
Released
(2.4.29-1ubuntu4.18)
|
|
focal |
Released
(2.4.41-4ubuntu3.6)
|
|
hirsute |
Released
(2.4.46-4ubuntu1.3)
|
|
jammy |
Released
(2.4.48-3.1ubuntu2)
|
|
Patches: upstream: https://github.com/apache/httpd/commit/d4901cb32133bc0e59ad193a29d1665597080d67 |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.0 |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Changed |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40438
- https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2021-40438
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://ubuntu.com/security/notices/USN-5090-1
- https://ubuntu.com/security/notices/USN-5090-2
- https://ubuntu.com/security/notices/USN-5090-3 (regression update)
- https://ubuntu.com/security/notices/USN-5090-2 (regression update esm)
- NVD
- Launchpad
- Debian