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# Microsoft Security Advisory CVE-2023-36799: .NET Denial of Service Vulnerability ## <a name="executive-summary"></a>Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET 7.0 and .NET 6.0. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A vulnerability exists in .NET where reading a maliciously crafted X.509 certificate may result in Denial of Service. This issue only affects Linux systems. ## Announcement Announcement for this issue can be found at https://github.com/dotnet/announcements/issues/275 ### <a name="mitigation-factors"></a>Mitigation factors Microsoft has not identified any mitigating factors for this vulnerability. ## <a name="affected-software"></a>Affected software * Any .NET 7.0 application running on .NET 7.0.10 or earlier. * Any .NET 6.0 application running on .NET 6.0.21 or earlier. If your application uses the followin...

The Gotham Cerberus service was found to have a stored cross-site scripting (XSS) vulnerability that could have allowed an attacker with access to Gotham to launch attacks against other users. This vulnerability is resolved in Cerberus 100.230704.0-27-g031dd58 .

DHCP Server Service Denial of Service Vulnerability

Windows TCP/IP Denial of Service Vulnerability

.NET Core and Visual Studio Denial of Service Vulnerability

Ubuntu Security Notice 6339-3 - It was discovered that the NTFS file system implementation in the Linux kernel did not properly validate MFT flags in certain situations. An attacker could use this to construct a malicious NTFS image that, when mounted and operated on, could cause a denial of service. Zi Fan Tan discovered that the binder IPC implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service or possibly execute arbitrary code.

Ubuntu Security Notice 6164-2 - USN-6164-1 fixed several vulnerabilities in c-ares. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Hannes Moesl discovered that c-ares incorrectly handled certain ipv6 addresses. An attacker could use this issue to cause c-ares to crash, resulting in a denial of service, or possibly execute arbitrary code.

Red Hat Security Advisory 2023-5094-01 - Kernel-based Virtual Machine is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Issues addressed include a denial of service vulnerability.

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 7.5 ATTENTION: Exploitable remotely/low attack complexity Vendor: Hitachi Energy Equipment: Lumada Asset Performance Management (APM) Edge Vulnerabilities: Use After Free, Double Free, Type Confusion, Observable Discrepancy 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition or disclosure of sensitive information. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Hitachi products are affected: Lumada APM Edge: Versions 4.0 and prior Lumada APM Edge: Version 6.3 3.2 Vulnerability Overview 3.2.1 USE AFTER FREE CWE-416 The public API function BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally to OpenSSL to support the SMIME, CMS and PKCS7 streaming capabilities, but may also be called directly by end user applications. The function receives a BIO from the caller, prepends a new BIO_f_asn1 filter BIO onto the fr...

An update for qemu-kvm is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security 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-2023-3354: A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QEMU cleans up the connection again, resulting in a ...