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RHSA-2015:1666: httpd24-httpd security update

Severity CVSS Published Added Modified
5 (AV:N/AC:L/Au:N/C:N/I:P/A:N) July 19, 2015 August 25, 2015 July 03, 2017

Description

Updated httpd24-httpd packages that fix multiple security issues are now available for Red Hat Software Collections 2. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server. Multiple flaws were found in the way httpd parsed HTTP requests and responses using chunked transfer encoding. A remote attacker could use these flaws to create a specially crafted request, which httpd would decode differently from an HTTP proxy software in front of it, possibly leading to HTTP request smuggling attacks. (CVE-2015-3183) It was discovered that in httpd 2.4, the internal API function ap_some_auth_required() could incorrectly indicate that a request was authenticated even when no authentication was used. An httpd module using this API function could consequently allow access that should have been denied. (CVE-2015-3185) Note: This update introduces new a new API function, ap_some_authn_required(), which correctly indicates if a request is authenticated. External httpd modules using the old API function should be modified to use the new one to completely resolve this issue. A denial of service flaw was found in the way the mod_lua httpd module processed certain WebSocket Ping requests. A remote attacker could send a specially crafted WebSocket Ping packet that would cause the httpd child process to crash. (CVE-2015-0228) A NULL pointer dereference flaw was found in the way httpd generated certain error responses. A remote attacker could possibly use this flaw to crash the httpd child process using a request that triggers a certain HTTP error. (CVE-2015-0253) All httpd24-httpd users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd24-httpd service will be restarted automatically.

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References

Solution

redhat-upgrade-httpd24-httpd

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