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 Traffic Server < 7.0.0 Multiple Vulnerabilities

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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...

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...

PT-2016-7238

Name of the Vulnerable Software and Affected Versions HTTP/2 protocol affected versions not specified Description The issue concerns the HTTP/2 protocol, which does not account for the TCP congestion window when determining content length. This oversight allows remote attackers to exploit a...

CVE-2016-7153: Exposure of Sensitive Information to an Unauthorized Actor

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...