1627 matches found
USN-4596-1 tomcat9 vulnerabilities
It was discovered that Tomcat did not properly manage HTTP/2 streams. An attacker could possibly use this to cause Tomcat to consume resources, resulting in a denial of service. CVE-2020-11996 It was discovered that Tomcat did not properly release the HTTP/1.1 processor after the upgrade to HTTP/...
The vulnerability of the nghttp2 library, related to errors occurring when using allocated memory during the processing of HTTP/2 SETTINGS, allows a attacker to cause a service failure.
The vulnerability of the nghttp2 library is related to errors that occur when using allocated memory during the processing of HTTP/2 SETTINGS packets. Exploiting this vulnerability can allow a malicious actor to cause service interruptions by sending numerous HTTP/2 SETTINGS packets...
Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns logging statements were made on the wrong connection causing concurrent use of memory pools. Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.
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USN-4458-1 apache2 vulnerabilities
Fabrice Perez discovered that the Apache modrewrite module incorrectly handled certain redirects. A remote attacker could possibly use this issue to perform redirects to an unexpected URL. CVE-2020-1927 Chamal De Silva discovered that the Apache modproxyftp module incorrectly handled memory when...
DEBIAN-CVE-2020-11993
Apache HTTP Server versions 2.4.20 to 2.4.43 When trace/debug was enabled for the HTTP/2 module and on certain traffic edge patterns, logging statements were made on the wrong connection, causing concurrent use of memory pools. Configuring the LogLevel of modhttp2 above "info" will mitigate this...
UBUNTU-CVE-2020-9490
Apache HTTP Server versions 2.4.20 to 2.4.43. A specially crafted value for the 'Cache-Digest' header in a HTTP/2 request would result in a crash when the server actually tries to HTTP/2 PUSH a resource afterwards. Configuring the HTTP/2 feature via "H2Push off" will mitigate this vulnerability f...
HTTP/2: flood using SETTINGS frames results in unbounded memory growth
A flaw was found in HTTP/2. Using SETTINGS frames and queuing of SETTINGS ACK frames, a flood could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
HTTP/2: large amount of data requests leads to denial of service
A flaw was found in HTTP/2. An attacker can request a large amount of data by manipulating window size and stream priority to force the server to queue the data in 1-byte chunks. Depending on how efficiently this data is queued, this queue can consume excess CPU, memory, or both, leading to a...
OPENSUSE-SU-2020:1063-1 Security update for tomcat
This update for tomcat fixes the following issues: Tomcat was updated to 9.0.36 See changelog at - CVE-2020-11996: Fixed an issue which by sending a specially crafted sequence of HTTP/2 requests could have triggered high CPU usage for several seconds making potentially the server unresponsive...
UBUNTU-CVE-2020-13934
An h2c direct connection to Apache Tomcat 10.0.0-M1 to 10.0.0-M6, 9.0.0.M5 to 9.0.36 and 8.5.1 to 8.5.56 did not release the HTTP/1.1 processor after the upgrade to HTTP/2. If a sufficient number of such requests were made, an OutOfMemoryException could occur leading to a denial of service...
envoy: Resource exhaustion via HTTP/2 client requests with large payloads and improper stream windows
Envoy version 1.14.2, 1.13.2, 1.12.4 or earlier is susceptible to increased memory usage in the case where an HTTP/2 client requests a large payload but does not send enough window updates to consume the entire stream and does not reset the stream...
UBUNTU-CVE-2020-11996
A specially crafted sequence of HTTP/2 requests sent to Apache Tomcat 10.0.0-M1 to 10.0.0-M5, 9.0.0.M1 to 9.0.35 and 8.5.0 to 8.5.55 could trigger high CPU usage for several seconds. If a sufficient number of such requests were made on concurrent HTTP/2 connections, the server could become...
httpd: mod_http2: read-after-free on a string compare
A vulnerability was found in Apache HTTP Server 2.4.17 to 2.4.38. Using fuzzed network input, the http/2 request handling could be made to access freed memory in string comparison when determining the method of a request and thus process the request incorrectly...
nghttp2: overly large SETTINGS frames can lead to DoS
A resource consumption vulnerability was found in nghttp2. This flaw allows an attacker to repeatedly construct an overly large HTTP/2 SETTINGS frame with a length of 14,400 bytes that causes excessive CPU usage, leading to a denial of service...
HTTP/2: flood using SETTINGS frames results in unbounded memory growth
A flaw was found in HTTP/2. Using SETTINGS frames and queuing of SETTINGS ACK frames, a flood could occur resulting in unbounded memory growth. The highest threat from this vulnerability is to system availability...
The vulnerability of the hpack_dht_insert function in the HAProxy networking software library, located in the hpack-tbl.c file, allows for unauthorized access to confidential data by exceeding the allowed buffer size. This vulnerability enables attackers to cause service failures or compromise data integrity.
The vulnerability of the hpackdhtinsert function in the HAProxy networking software library is related to the execution of operations within acceptable buffer data limits. Exploiting this vulnerability could allow an attacker to gain unauthorized access to confidential data, cause service failure...
F5 BIG-IP Input Validation Error Vulnerability (CNVD-2020-36273)
F5 BIG-IP is an application delivery platform from F5 USA that integrates network traffic management, application security management, load balancing and other functions. An input validation error vulnerability exists in F5 BIG-IP versions 15.1.0 through 15.1.0.1, 15.0.0 through 15.0.1.2, and...
haproxy: HTTP/2 implementation vulnerable to intermediary encapsulation attacks
The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return CR, ASCII 0xd, line feed LF, ASCII 0xa, and the zero character NUL, ASCII 0x0, aka Intermediary Encapsulation Attacks...
CVE-2020-5871
On BIG-IP 14.1.0-14.1.2.3, undisclosed requests can lead to a denial of service DoS when sent to BIG-IP HTTP/2 virtual servers. The problem can occur when ciphers, which have been blacklisted by the HTTP/2 RFC, are used on backend servers. This is a data-plane issue. There is no control-plane...
