#dos

A flaw was found in QEMU. The async nature of hot-unplug enables a race scenario where the net device backend is cleared before the virtio-net pci frontend has been unplugged. A malicious guest could use this time window to trigger an assertion and cause a denial of service.

A flaw was found in the QEMU built-in VNC server while processing ClientCutText messages. A wrong exit condition may lead to an infinite loop when inflating an attacker controlled zlib buffer in the `inflate_buffer` function. This could allow a remote authenticated client who is able to send a clipboard to the VNC server to trigger a denial of service.

A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the `VMGEXIT` handler recursively. If an attacker manages to call the handler multiple times, they can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (`CONFIG_VMAP_STACK`).

Lack of error handling in the TCP server in Google's gRPC starting version 1.23 on posix-compatible platforms (ex. Linux) allows an attacker to cause a denial of service by initiating a significant number of connections with the server. Note that gRPC C++ Python, and Ruby are affected, but gRPC Java, and Go are NOT affected. 

### 1. Summary There is a rate limit on the login function of Strapi's admin screen, but it is possible to circumvent it. ### 2. Details It is possible to avoid this by modifying the rate-limited request path as follows. 1. Manipulating request paths to upper or lower case. (Pattern 1) - In this case, avoidance is possible with various patterns. 2. Add path slashes to the end of the request path. (Pattern 2) ### 3. PoC Access the administrator's login screen (`/admin/auth/login`) and execute the following PoC on the browser's console screen. #### Pattern 1 (uppercase and lowercase) ```js // poc.js (async () => { const data1 = { email: "admin@strapi.com", // registered e-mail address password: "invalid_password", }; const data2 = { email: "admin@strapi.com", password: "RyG5z-CE2-]*4e4", // correct password }; for (let i = 0; i < 30; i++) { await fetch("http://localhost:1337/admin/login", { method: "POST", body: JSON.stringify(data1), ...

Red Hat Integration Camel for Spring Boot 3.20.2 release and security update is now available. Red Hat Product Security has rated this update as having an impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2023-20873: A flaw was found in Spring Boot. This targets specifically 'spring-boot-actuator-autoconfigure' package. This issue occurs when an application is deployed to Cloud Foundry, which could be susceptible to a security bypass. Specifically, an application is vulnerable when all of the following are true: * You have code that can handl...

Ubuntu Security Notice 6363-1 - It was discovered that curl incorrectly handled certain large headers. A remote attacker could possibly use this issue to cause curl to consume resources, resulting in a denial of service.

Ubuntu Security Notice 6358-1 - It was discovered that RedCloth incorrectly handled certain inputs during html sanitisation. An attacker could possibly use this issue to cause a denial of service.

Ubuntu Security Notice 6362-1 - Kevin Jones discovered that .NET did not properly process certain X.509 certificates. An attacker could possibly use this issue to cause a denial of service.

Red Hat Integration Camel for Spring Boot 3.18.3.2 release and security update is now available. The purpose of this text-only errata is to inform you about the security issues fixed in this release. Red Hat Product Security has rated this update as having an impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-46877: A flaw was found in Jackson Databind. This issue may allow a malicious user to cause a denial of service (2 GB transient heap usage per read) in uncommon situations involving JsonNode JDK serialization. * CVE-2023-20873: A fla...