#dos

### Summary This report details a security vulnerability in Argo CD, where an unauthenticated attacker can send a specially crafted large JSON payload to the /api/webhook endpoint, causing excessive memory allocation that leads to service disruption by triggering an Out Of Memory (OOM) kill. The issue poses a high risk to the availability of Argo CD deployments. ### Details The webhook server always listens to requests. By default, the endpoint doesn't require authentication. It's possible to send a large, malicious request with headers (in this case "X-GitHub-Event: push") that will make ArgoCD start allocating memory to parse the incoming request. Since the request can be constructed client-side without allocating large amounts of memory, it can be arbitrarily large. Eventually, the argocd-server component will get OOMKilled as it consumes all its available memory. The fix would be to enforce a limit on the size of the request being parsed. ### PoC Port-forward to the argocd-serve...

Ubuntu Security Notice 6903-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute arbitrary code. Ronald Crane discovered that Thunderbird did not properly manage certain memory operations in the NSS. An attacker could potentially exploit this issue to cause a denial of service.

Law enforcement officials in the U.K. have arrested a 17-year-old boy from Walsall who is suspected to be a member of the notorious Scattered Spider cybercrime syndicate. The arrest was made "in connection with a global cyber online crime group which has been targeting large organizations with ransomware and gaining access to computer networks," West Midlands police said. "The arrest is part of

Ubuntu Security Notice 6896-4 - It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the Atheros 802.11ac wireless driver did not properly validate certain data structures, leading to a NULL pointer dereference. An attacker could possibly use this to cause a denial of service.

Ubuntu Security Notice 6898-3 - Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not properly handle certain error conditions, leading to a NULL pointer dereference. A local attacker could possibly trigger this vulnerability to cause a denial of service. Gui-Dong Han discovered that the software RAID driver in the Linux kernel contained a race condition, leading to an integer overflow vulnerability. A privileged attacker could possibly use this to cause a denial of service.

Ubuntu Security Notice 6895-3 - It was discovered that the ATA over Ethernet driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that the HugeTLB file system component of the Linux Kernel contained a NULL pointer dereference vulnerability. A privileged attacker could possibly use this to to cause a denial of service.

Red Hat Security Advisory 2024-4633-03 - An update for 389-ds-base is now available for Red Hat Enterprise Linux 9.2 Extended Update Support. Issues addressed include denial of service and heap overflow vulnerabilities.

An improper input validation of the p2c parameter in the Apache CXF JOSE code before 4.0.5, 3.6.4 and 3.5.9 allows an attacker to perform a denial of service attack by specifying a large value for this parameter in a token. 

Debian Linux Security Advisory 5732-1 - Security issues were discovered in Chromium which could result in the execution of arbitrary code, denial of service, or information disclosure.

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 8.2 ATTENTION: Exploitable remotely Vendor: Mitsubishi Electric Corporation Equipment: MELSOFT MaiLab Vulnerability: Improper Verification of Cryptographic Signature 2. RISK EVALUATION Successful exploitation of this vulnerability could allow a remote attacker to cause a denial-of-service condition in the target product. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Mitsubishi Electric reports that the following versions of MELSOFT MaiLab, a data science tool for manufacturing improvement, are affected: MELSOFT MaiLab SW1DND-MAILAB-M: versions 1.00A to 1.05F MELSOFT MaiLab SW1DND-MAILABPR-M: versions 1.00A to 1.05F 3.2 Vulnerability Overview 3.2.1 Improper Verification of Cryptographic Signature CWE-347 A denial-of-service vulnerability exists in the OpenSSL library used in MELSOFT MaiLab due to improper verification of cryptographic signature resulting from improper implementation of the POLY1305 message authentication code (MAC). CVE-2023-4807 has ...