Changes with Apache 2.2.23
*) SECURITY: CVE-2012-0883 (cve.mitre.org)
envvars: Fix insecure handling of LD_LIBRARY_PATH that could lead to the
current working directory to be searched for DSOs. [Stefan Fritsch]
*) 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. [Niels Heinen <heinenn google.com>]
*) htdbm, htpasswd: Don't crash if crypt() fails (e.g. with FIPS enabled).
[Paul Wouters <pwouters redhat.com>, Joe Orton]
*) mod_ldap: Treat the "server unavailable" condition as a transient
error with all LDAP SDKs. [Filip Valder <filip.valder vsb.cz>]
*) core: Add filesystem paths to access denied / access failed messages.
[Eric Covener]
*) core: Fix error handling in ap_scan_script_header_err_brigade() if there
is no EOS bucket in the brigade. PR 48272. [Stefan Fritsch]
*) core: Prevent "httpd -k restart" from killing server in presence of
config error. [Joe Orton]
*) mod_ssl: when compiled against OpenSSL 1.0.1 or later, allow explicit
control of TLSv1.1 and TLSv1.2 through the SSLProtocol directive,
adding TLSv1.1 and TLSv1.2 support by default given 'SSLProtocol All'.
[Kaspar Brand, William Rowe]
*) mod_log_config: Fix %{abc}C truncating cookie values at first "=".
PR 53104. [Greg Ames]
*) Unix MPMs: Fix small memory leak in parent process if connect()
failed when waking up children. [Joe Orton]
*) mod_proxy_ajp: Add support for 'ProxyErrorOverride on'. PR 50945.
[Peter Pramberger <peter pramberger.at>, Jim Jagielski]
*) Added SSLProxyMachineCertificateChainFile directive so the proxy client
can select the proper client certificate when using a chain and the
remote server only lists the root CA as allowed.
*) mpm_event, mpm_worker: Remain active amidst prevalent child process
resource shortages. [Jeff Trawick]
*) mod_rewrite: Add "AllowAnyURI" option. PR 52774. [Joe Orton]
*) mod_rewrite: Fix the RewriteEngine directive to work within a
location. Previously, once RewriteEngine was switched on globally,
it was impossible to switch off. [Graham Leggett]
*) mod_proxy_balancer: Restore balancing after a failed worker has
recovered when using lbmethod_bybusyness. PR 48735. [Jeff Trawick]
*) mod_dumpio: Properly handle errors from subsequent input filters.
PR 52914. [Stefan Fritsch]
*) mpm_worker: Fix cases where the spawn rate wasn't reduced after child
process resource shortages. [Jeff Trawick]
*) mpm_prefork: Reduce spawn rate after a child process exits due to
unexpected poll or accept failure. [Jeff Trawick]
*) core: Adjust ap_scan_script_header_err*() to prevent mod_cgi and mod_cgid
from logging bogus data in case of errors. [Stefan Fritsch]
*) mod_disk_cache, mod_mem_cache: Decline the opportunity to cache if the
response is a 206 Partial Content. This stops a reverse proxied partial
response from becoming cached, and then being served in subsequent
responses. PR 49113. [Graham Leggett]
*) configure: Fix usage with external apr and apu in non-default paths
and recent gcc versions >= 4.6. [Jean-Frederic Clere]
*) core: Fix building against PCRE 8.30 by switching from the obsolete
pcre_info() to pcre_fullinfo(). PR 52623 [Ruediger Pluem, Rainer Jung]
*) mod_proxy: Add the forcerecovery balancer parameter that determines if
recovery for balancer workers is enforced. [Ruediger Pluem]
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