506 matches found
HTTP/2: 0-length headers lead to denial of service
A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...
HTTP/2: flood using HEADERS frames results in unbounded memory growth
A flaw was found in HTTP/2. Using HEADER frames with invalid HTTP headers and queuing of response RSTSTREAM frames, an attacker could cause a flood resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
HTTP/2: 0-length headers lead to denial of service
A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...
HTTP/2: flood using PING frames results in unbounded memory growth
A flaw was found in HTTP/2. Using PING frames and queuing of response PING ACK frames, a flood attack could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
HTTP/2: 0-length headers lead to denial of service
A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...
HTTP/2: 0-length headers lead to denial of service
A flaw was found in HTTP/2. An attacker, sending a stream of header with a 0-length header name and a 0-length header value, could cause some implementations to allocate memory for these headers and keep the allocations alive until the session dies. The can consume excess memory, potentially...
HTTP/2: flood using PING frames results in unbounded memory growth
A flaw was found in HTTP/2. Using PING frames and queuing of response PING ACK frames, a flood attack could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
USN-4099-1 nginx vulnerabilities
Jonathan Looney discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to consume resources, leading to a denial of service...
DEBIAN-CVE-2019-9512
Some HTTP/2 implementations are vulnerable to ping floods, potentially leading to a denial of service. The attacker sends continual pings to an HTTP/2 peer, causing the peer to build an internal queue of responses. Depending on how efficiently this data is queued, this can consume excess CPU,...
ALPINE-CVE-2019-9517
Some HTTP/2 implementations are vulnerable to unconstrained interal data buffering, potentially leading to a denial of service. The attacker opens the HTTP/2 window so the peer can send without constraint; however, they leave the TCP window closed so the peer cannot actually write many of the byt...
UBUNTU-CVE-2019-9518
Some HTTP/2 implementations are vulnerable to a flood of empty frames, potentially leading to a denial of service. The attacker sends a stream of frames with an empty payload and without the end-of-stream flag. These frames can be DATA, HEADERS, CONTINUATION and/or PUSHPROMISE. The peer spends ti...
PT-2019-3018
Name of the Vulnerable Software and Affected Versions HTTP/2 implementations affected versions not specified Description The issue is related to a denial of service vulnerability in some HTTP/2 implementations. An attacker can create multiple request streams and continually shuffle the priority o...
Mozilla: Use-after-free with HTTP/2 cached stream
A use-after-free vulnerability can occur in HTTP/2 when a cached HTTP/2 stream is closed while still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR 60.8, Firefox 68, and Thunderbird 60.8...
Mozilla Firefox Memory Misreference Vulnerability (CNVD-2019-22632)
Mozilla Firefox browser Firefox is a free, open source browser for Windows, Linux and MacOSX platforms. A memory misreference vulnerability exists in HTTP/2 in Mozilla Firefox versions prior to 68 when the cached HTTP/2 stream is closed while still in use. An attacker could exploit this...
GHSA-Q4HG-RMQ2-52Q9 Improper Locking in Apache Tomcat
The fix for CVE-2019-0199 was incomplete and did not address HTTP/2 connection window exhaustion on write in Apache Tomcat versions 9.0.0.M1 to 9.0.19 and 8.5.0 to 8.5.40 . By not sending WINDOWUPDATE messages for the connection window stream 0 clients were able to cause server-side threads to...
DEBIAN-CVE-2019-0197
A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server...
PT-2019-18201 · F5 · F5 Big-Ip
Name of the Vulnerable Software and Affected Versions: F5 BIG-IP versions 12.1.0 through 12.1.4 F5 BIG-IP versions 13.0.0 through 13.1.1.4 F5 BIG-IP versions 14.0.0 through 14.1.0.1 Description: The Traffic Management Microkernel TMM may restart when a virtual server has an HTTP/2 profile with...
istio/envoy: Authorization bypass via null characters injection in HTTP/1.x
A flaw was found in Envoy version 1.9.0 and older, where Envoy does not reject embedded zero characters NUL, ASCII 0x0 when processing HTTP/1.x header values. This flaw allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules,...
UBUNTU-CVE-2019-0199
The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servle...
