Headline
Ubuntu Security Notice USN-5487-1
Ubuntu Security Notice 5487-1 - It was discovered that Apache HTTP Server mod_proxy_ajp incorrectly handled certain crafted request. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a denial of service. It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a crash or expose sensitive information.
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Ubuntu Security Notice USN-5487-1
June 21, 2022
apache2 vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Summary:
Several security issues were fixed in Apache HTTP Server.
Software Description:
- apache2: Apache HTTP server
Details:
It was discovered that Apache HTTP Server mod_proxy_ajp incorrectly handled
certain crafted request. A remote attacker could possibly use this issue to
perform an HTTP Request Smuggling attack. (CVE-2022-26377)
It was discovered that Apache HTTP Server incorrectly handled certain
request. An attacker could possibly use this issue to cause a denial
of service. (CVE-2022-28614)
It was discovered that Apache HTTP Server incorrectly handled certain request.
An attacker could possibly use this issue to cause a crash or expose
sensitive information. (CVE-2022-28615)
It was discovered that Apache HTTP Server incorrectly handled certain request.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2022-29404)
It was discovered that Apache HTTP Server incorrectly handled certain
request. An attacker could possibly use this issue to cause a crash.
(CVE-2022-30522)
It was discovered that Apache HTTP Server incorrectly handled certain request.
An attacker could possibly use this issue to execute arbitrary code or cause
a crash. (CVE-2022-30556)
It was discovered that Apache HTTP Server incorrectly handled certain request.
An attacker could possibly use this issue to bypass IP based authentication.
(CVE-2022-31813)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 22.04 LTS:
apache2 2.4.52-1ubuntu4.1
apache2-bin 2.4.52-1ubuntu4.1
Ubuntu 21.10:
apache2 2.4.48-3.1ubuntu3.5
apache2-bin 2.4.48-3.1ubuntu3.5
Ubuntu 20.04 LTS:
apache2 2.4.41-4ubuntu3.12
apache2-bin 2.4.41-4ubuntu3.12
Ubuntu 18.04 LTS:
apache2 2.4.29-1ubuntu4.24
apache2-bin 2.4.29-1ubuntu4.24
Ubuntu 16.04 ESM:
apache2 2.4.18-2ubuntu3.17+esm6
apache2-bin 2.4.18-2ubuntu3.17+esm6
Ubuntu 14.04 ESM:
apache2 2.4.7-1ubuntu4.22+esm5
apache2-bin 2.4.7-1ubuntu4.22+esm5
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5487-1
CVE-2022-26377, CVE-2022-28614, CVE-2022-28615, CVE-2022-29404,
CVE-2022-30522, CVE-2022-30556, CVE-2022-31813
Package Information:
https://launchpad.net/ubuntu/+source/apache2/2.4.52-1ubuntu4.1
https://launchpad.net/ubuntu/+source/apache2/2.4.48-3.1ubuntu3.5
https://launchpad.net/ubuntu/+source/apache2/2.4.41-4ubuntu3.12
https://launchpad.net/ubuntu/+source/apache2/2.4.29-1ubuntu4.24
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Ubuntu Security Notice 5487-2 - USN-5487-1 fixed a vulnerabilities in Apache. Unfortunately, that update introduced a regression when proxying balancer manager connections in some configurations on Ubuntu 14.04 ESM. This update reverts those changes till further fix. It was discovered that Apache HTTP Server mod_proxy_ajp incorrectly handled certain crafted request. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a denial of service. It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a crash or expose sensitive information. Multiple other issues were also originally addressed.
Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.
Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer.
In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0) may cause a denial of service due to no default limit on possible input size.
The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with mod_luas r:puts() function.
Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability for unpatched servers.