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02/01/2012

Apache HTTP Server 2.2.22 Released

The Apache HTTP Server project released version 2.2.22 and it's an important release, addressing 6 "significant" security vulnerabilities:

  1. CVE-2011-3368 (cve.mitre.org)  -  Reject requests where the request-URI does not match the HTTP specification, preventing unexpected expansion of target URLs in some reverse proxy configurations.
  2. CVE-2011-3607 (cve.mitre.org)  -  Fix integer overflow in ap_pregsub() which, when the mod_setenvif module is enabled, could allow local users to gain privileges via a .htaccess file.
  3. CVE-2011-4317 (cve.mitre.org)  -  Resolve additional cases of URL rewriting with ProxyPassMatch or RewriteRule, where particular request-URIs could result in undesired backend network exposure in some configurations.
  4. CVE-2012-0021 (cve.mitre.org)  -  mod_log_config: Fix segfault (crash) when the '%{cookiename}C' log format string is in use and a client sends a nameless, valueless cookie, causing a denial of service. The issue existed since version 2.2.17.
  5. CVE-2012-0031 (cve.mitre.org)  -  Fix scoreboard issue which could allow an unprivileged child process could cause the parent to crash at shutdown rather than terminate cleanly.
  6. CVE-2012-0053 (cve.mitre.org)  -  Fixed an issue in error responses that could expose "httpOnly" cookies when no custom ErrorDocument is specified for status code 400.

There are also some bugs fixed in this release as well—see the changelog for the full list and, like always, you can download a copy from a mirror near you.

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