Apache Httpd < 2.4.25 : HTTP/2 CONTINUATION denial of service

The HTTP/2 protocol implementation modhttp2 had an incomplete handling of the LimitRequestFields directive. This allowed an attacker to inject unlimited request headers into the server, leading to eventual memory exhaustion...

Apache Httpd < 2.4.26 : mod_http2 Null Pointer Dereference

A maliciously constructed HTTP/2 request could cause modhttp2 to dereference a NULL pointer and crash the server process...

Apache Traffic Server < 7.0.0 Multiple Vulnerabilities

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Fixed in Apache Tomcat 9.0.0.M13

Note: The issues below were fixed in Apache Tomcat 9.0.0.M12 but the release vote for the 9.0.0.M12 release candidate did not pass. Therefore, although users must download 9.0.0.M13 to obtain a version that includes fixes for these issues, version 9.0.0.M12 is not included in the list of affected...

Fixed in Apache Tomcat 8.5.8

Note: The issues below were fixed in Apache Tomcat 8.5.7 but the release vote for the 8.5.7 release candidate did not pass. Therefore, although users must download 8.5.8 to obtain a version that includes fixes for these issues, version 8.5.7 is not included in the list of affected versions...

CVE-2016-7153

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack...

CVE-2016-7153

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack...

Design/Logic Flaw

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack...

CVE-2016-7153

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack...

CVE-2016-7153

CVE-2016-7153 describes a vulnerability in the HTTP/2 protocol where the TCP congestion window is not considered when determining content length, potentially enabling an attacker to obtain cleartext data by leveraging a web browser configuration that sends third‑party cookies (HEIST). The connect...

CVE-2016-7153

The HTTP/2 protocol does not consider the role of the TCP congestion window in providing information about content length, which makes it easier for remote attackers to obtain cleartext data by leveraging a web-browser configuration in which third-party cookies are sent, aka a "HEIST" attack...

4 Flaws hit HTTP/2 Protocol that could allow Hackers to Disrupt Servers

If you think that the HTTP/2 protocol is more secure than the standard HTTP Hypertext Transfer Protocol, then you might be wrong, as it took researchers just four months to discover four flaws in the HTTP/2 protocol. HTTP/2 was launched properly just in May last year after Google bundled its SPDY...

Important: Red Hat Security Advisory: httpd24-httpd security update

An update for httpd24-httpd is now available for Red Hat Software Collections. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerabilit...

Apache HTTP Server 2.4.x < 2.4.23 Multiple Vulnerabilities

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Apache 2.4.18 / 2.4.20 X.509 Certificate Authentication Bypass

According to its banner, the version of Apache running on the remote host is either 2.4.18 or 2.4.20. Additionally, HTTP/2 is enabled over TLS or SSL. It is, therefore, affected by the an authentication bypass vulnerability in the experimental module for the HTTP/2 protocol due to a failure to...

Apache HTTP Server Security Bypass Vulnerability (Jul 2016)

Apache HTTP Server is prone to a security bypass vulnerability. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only CPE = "cpe:/a:apache:httpserver...

CVE-2016-4979

The Apache HTTP Server 2.4.18 through 2.4.20, when modhttp2 and modssl are enabled, does not properly recognize the "SSLVerifyClient require" directive for HTTP/2 request authorization, which allows remote attackers to bypass intended access restrictions by leveraging the ability to send multiple...

CVE-2016-1546

The Apache HTTP Server 2.4.17 and 2.4.18, when modhttp2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service stream-processing outage via modified flow-control windows...

CVE-2016-1546

The Apache HTTP Server 2.4.17 and 2.4.18, when modhttp2 is enabled, does not limit the number of simultaneous stream workers for a single HTTP/2 connection, which allows remote attackers to cause a denial of service stream-processing outage via modified flow-control windows...

Authorization

The Apache HTTP Server 2.4.18 through 2.4.20, when modhttp2 and modssl are enabled, does not properly recognize the "SSLVerifyClient require" directive for HTTP/2 request authorization, which allows remote attackers to bypass intended access restrictions by leveraging the ability to send multiple...