Ubuntu Security Notice 3627-2 - USN-3627-1 fixed vulnerabilities in Apache HTTP Server. This update provides the corresponding updates for Ubuntu 18.04 LTS. Alex Nichols and Jakob Hirsch discovered that the Apache HTTP Server mod_authnz_ldap module incorrectly handled missing charset encoding headers. A remote attacker could possibly use this issue to cause the server to crash, resulting in a denial of service. Elar Lang discovered that the Apache HTTP Server incorrectly handled certain characters specified in <FilesMatch>. A remote attacker could possibly use this issue to upload certain files, contrary to expectations. Various other issues were also addressed.
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