#dos

A vulnerability was found in Undertow, where the chunked response hangs after the body was flushed. The response headers and body were sent but the client would continue waiting as Undertow does not send the expected `0\r\n` termination of the chunked response. This results in uncontrolled resource consumption, leaving the server side to a denial of service attack. This happens only with Java 17 TLSv1.3 scenarios.

### Summary A denial of service (DoS) attack by field duplication in GraphQL is a type of attack where an attacker exploits the flexibility of GraphQL to overwhelm a server by requesting the same field multiple times in a single query. This can cause the server to perform redundant computations and consume excessive resources, leading to a denial of service for legitimate users. ### Details Request to the endpoint /graphql are sent when visualizing graphs generated at a dashboard:   By modifying the data sent and duplicating many times the fields a DoS attack is possible. ### PoC The goal is to create a payload that generates a body like this, where the 'max' field is duplicated many times, each with the 'id' field duplicated many times inside it. `{'query': 'query { query_4f4722ea: t...

Debian Linux Security Advisory 5726-1 - Two vulnerabilities were discovered in the GSS message token handling in krb5, the MIT implementation of Kerberos. An attacker can take advantage of these flaws to bypass integrity protections or cause a denial of service.

Gentoo Linux Security Advisory 202407-21 - Multiple vulnerabilities have been discovered in the X.Org X11 library, the worst of which could lead to a denial of service. Versions greater than or equal to 1.8.7 are affected.

Red Hat Security Advisory 2024-4353-03 - An update for the nodejs:16 package is now available for Red Hat Enterprise Linux 8.8 Extended Update Support. Issues addressed include a denial of service vulnerability.

A buffer-management vulnerability in OPC Foundation OPCFoundation.NetStandard.Opc.Ua.Core before 1.5.374.54 could allow remote attackers to exhaust memory resources. It is triggered when the system receives an excessive number of messages from a remote source. This could potentially lead to a denial of service (DoS) condition, disrupting the normal operation of the system.

Middleware causes a prohibitive amount of heap allocations when processing malicious preflight requests that include a Access-Control-Request-Headers (ACRH) header whose value contains many commas. This behavior can be abused by attackers to produce undue load on the middleware/server as an attempt to cause a denial of service.

Ubuntu Security Notice 6879-1 - Jingzhou Fu discovered that Virtuoso Open-Source Edition incorrectly handled certain crafted SQL statements. An attacker could possibly use this issue to crash the program, resulting in a denial of service. Jingzhou Fu discovered that Virtuoso Open-Source Edition incorrectly handled certain crafted SQL statements. An attacker could possibly use this issue to crash the program, resulting in a denial of service. This issue only affects Ubuntu 22.04 LTS and Ubuntu 24.04 LTS.

Ubuntu Security Notice 6873-2 - It was discovered that the Intel Data Streaming and Intel Analytics Accelerator drivers in the Linux kernel allowed direct access to the devices for unprivileged users and virtual machines. A local attacker could use this to cause a denial of service. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

Ubuntu Security Notice 6870-2 - It was discovered that the Intel Data Streaming and Intel Analytics Accelerator drivers in the Linux kernel allowed direct access to the devices for unprivileged users and virtual machines. A local attacker could use this to cause a denial of service. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.