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.
Original advisory details:
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. (CVE-2021-33193)
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.
(CVE-2021-34798)
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.
(CVE-2021-36160)
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. (CVE-2021-39275)
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.
(CVE-2021-40438)
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Ubuntu | 16.04 | noarch | apache2 | <Â 2.4.18-2ubuntu3.17+esm3 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2 | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-bin | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-bin-dbgsym | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-data | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-dbg | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-dbgsym | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-dev | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-dev-dbgsym | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |
Ubuntu | 16.04 | noarch | apache2-doc | <Â 2.4.18-2ubuntu3.17 | UNKNOWN |