Headline
Ubuntu Security Notice USN-5487-3
Ubuntu Security Notice 5487-3 - USN-5487-1 fixed several vulnerabilities in Apache HTTP Server. Unfortunately it caused regressions. USN-5487-2 reverted the patches that caused the regression in Ubuntu 14.04 ESM for further investigation. This update re-adds the security fixes for Ubuntu 14.04 ESM and fixes two different regressions: one affecting mod_proxy only in Ubuntu 14.04 ESM and another in mod_sed affecting also Ubuntu 16.04 ESM and Ubuntu 18.04 LTS.
==========================================================================
Ubuntu Security Notice USN-5487-3
June 23, 2022
apache2 regression
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM
- Ubuntu 14.04 ESM
Summary:
USN-5487-1 introduced a regression in Apache HTTP Server.
Software Description:
- apache2: Apache HTTP server
Details:
USN-5487-1 fixed several vulnerabilities in Apache HTTP Server.
Unfortunately it caused regressions. USN-5487-2 reverted the
patches that caused the regression in Ubuntu 14.04 ESM for further
investigation. This update re-adds the security fixes for Ubuntu
14.04 ESM and fixes two different regressions: one affecting mod_proxy
only in Ubuntu 14.04 ESM and another in mod_sed affecting also Ubuntu 16.04 ESM
and Ubuntu 18.04 LTS.
We apologize for the inconvenience.
Original advisory 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 18.04 LTS:
apache2 2.4.29-1ubuntu4.25
apache2-bin 2.4.29-1ubuntu4.25
Ubuntu 16.04 ESM:
apache2 2.4.18-2ubuntu3.17+esm7
apache2-bin 2.4.18-2ubuntu3.17+esm7
Ubuntu 14.04 ESM:
apache2 2.4.7-1ubuntu4.22+esm8
apache2-bin 2.4.7-1ubuntu4.22+esm8
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5487-3
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, https://launchpad.net/bugs/1979577,
https://launchpad.net/bugs/1979641
Package Information:
https://launchpad.net/ubuntu/+source/apache2/2.4.29-1ubuntu4.25
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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.
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.
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.
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.
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.
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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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.
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.