Documentation Web Servers Beat

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httpd

httpd was updated to 2.4.3-1. The new version has a lot of fixes and improvements:

• SECURITY: CVE-2012-3502 (cve.mitre.org) mod_proxy_ajp, mod_proxy_http: Fix an issue in back end connection closing which could lead to privacy issues due to a response mixup.

• SECURITY: CVE-2012-2687 (cve.mitre.org) mod_negotiation: Escape filenames in variant list to prevent a possible XSS for a site where untrusted users can upload files to a location with MultiViews enabled.

• mod_authnz_ldap: Don't try a potentially expensive nested groups search before exhausting all AuthLDAPGroupAttribute checks on the current group.

• mod_lua: Add new directive LuaAuthzProvider to allow implementing an authorization provider in lua.

• core: Be less strict when checking whether Content-Type is set to "application/x-www-form-urlencoded" when parsing POST data, or we risk losing data with an appended charset.

• httpd.conf: Added configuration directives to set a bad_DNT environment variable based on User-Agent and to remove the DNT header field from incoming requests when a match occurs. This currently has the effect of removing DNT from requests by MSIE 10.0 because it deliberately violates the current specification of DNT semantics for HTTP.

• mod_cache: Set content type in case we return stale content.

• ab: Fix read failure when targeting SSL server.

• htpasswd: Use correct file mode for checking if file is writable.

• mod_rewrite: Fix crash with dbd RewriteMaps.

• mod_ssl: Add new directive SSLCompression to disable TLS-level compression.

• mod_lua: Add a few missing request_rec fields. Rename remote_ip to client_ip to match conn_rec.

• mod_lua: Change prototype of vm_construct, to work around gcc bug which causes a segfault.

• mpm_event: Don't count connections in lingering close state when calculating how many additional connections may be accepted.

• mod_ssl: If exiting during initialization because of a fatal error, log a message to the main error log pointing to the appropriate virtual host error log.

• mod_proxy_ajp: Reduce memory usage in case of many keep-alive requests on one connection.

• mod_proxy_balancer: Restore balancing after a failed worker has recovered when using lbmethod_bybusyness.

• mod_setenvif: Compile some global regex only once during startup. This should save some memory, especially with .htaccess.

• core: Add the port number to the vhost's name in the scoreboard.

• mod_proxy: Fix ProxyPassReverse for balancer configurations.

• mod_lua: Add the parsebody function for parsing POST data.

• apxs: Use LDFLAGS from config_vars.mk in addition to CFLAGS and CPPFLAGS.

• mod_proxy: Fix memory leak or possible corruption in ProxyBlock implementation.

• mod_proxy: Check hostname from request URI against ProxyBlock list, not forward proxy, if ProxyRemote* is configured.

• mod_proxy_connect: Avoid DNS lookup on hostname from request URI if ProxyRemote* is configured.

• mpm_event, mpm_worker: Remain active amidst prevalent child process resource shortages.

• Add "strict" and "warnings" pragmas to Perl scripts.

• ab: Fix bind() errors.

• mpm_event: Don't do a blocking write when starting a lingering close from the listener thread.

• mod_so: If a filename without slashes is specified for LoadFile or LoadModule and the file cannot be found in the server root directory, try to use the standard dlopen() search path.

• mpm_event, mpm_worker: Fix cases where the spawn rate wasn't reduced after child process resource shortages.

• mpm_prefork: Reduce spawn rate after a child process exits due to unexpected poll or accept failure.

• core: Log value of Status header line in script responses rather than the fixed header name.

• mpm_ssl: Fix handling of empty response from OCSP server.

• mpm_event: Fix handling of MaxConnectionsPerChild.

• mod_authz_core: If an expression in "Require expr" returns denied and references %{REMOTE_USER}, trigger authentication and retry.

• core: Always log if LimitRequestFieldSize triggers.

• mod_deflate: Skip compression if compression is enabled at SSL level.

• core: Add missing HTTP status codes registered with IANA.

• mod_ldap: Treat the "server unavailable" condition as a transient error with all LDAP SDKs.

• core: Fix spurious "not allowed here" error returned when the Options directive is used in .htaccess and "AllowOverride Options" (with no specific options restricted) is configured.

• mod_authz_core: Fix parsing of Require arguments in <AuthzProviderAlias>.

• mod_log_config: Fix %{abc}C truncating cookie values at first "=".

• mod_ext_filter: Fix error_log spam when input filters are configured.

• mod_rewrite: Add "AllowAnyURI" option.

• htdbm, htpasswd: Don't crash if crypt() fails (e.g. with FIPS enabled).

• core: Use a TLS 1.0 close_notify alert for internal dummy connection if the chosen listener is configured for https.

• mod_proxy: Use the the same hostname for SNI as for the HTTP request when forwarding to SSL backends.

• mod_info: Display all registered providers.

• mod_ssl: Send the error message for speaking http to an https port using HTTP/1.0 instead of HTTP/0.9, and omit the link that may be wrong when using SNI.

• core: Fix segfault in logging if r->useragent_addr or c->client_addr is unset.

• log_server_status: Bring Perl style forward to the present, use standard modules, update for new format of server-status output.

• mod_sed, mod_log_debug, mod_rewrite: Symbol namespace cleanups.

• core: Prevent "httpd -k restart" from killing server in presence of config error.

• mod_proxy_fcgi: If there is an error reading the headers from the backend, send an error to the client.

lighttpd

lighttpd was updated to 1.4.32-2. There are many fixes:

• [ssl] fix segfault in counting renegotiations for openssl versions without TLSEXT/SNI

• Move fdevent subsystem includes to implementation files to reduce conflicts

• [mod_compress] fix handling if etags are disabled but cache-dir is set – may lead to double response

• disable mmap by default

• buffer_caseless_compare: always convert letters to lowercase to get transitive results, fixing array lookups

• Fix handling of empty header list entries in http_request_split_value, fixing invalid read in valgrind

• Fix access log escaping of ” and \\

• [mod_auth] Fix digest “md5-sess” implementation (Errata ID 1649, RFC 2617)

• [auth] Add “AUTH_TYPE” environment (for * cgi), remove fastcgi specific workaround, add fastcgi test case

• [mod_*cgi,mod_accesslog] Fix splitting :port with ipv6

• Detect multiple -f options: show error message instead of assert

• [mod_extforward] Support ipv6 addresses

• [mod_redirect] Support url.redirect-code option

• Fix --enable-mmap handling in configure.ac