#dos

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).  View CSAF 1. EXECUTIVE SUMMARY CVSS v4 9.4 ATTENTION: Exploitable remotely/low attack complexity Vendor: Siemens Equipment: SINEC NMS Vulnerabilities: Use After Free, Improper Input Validation, Deserialization of Untrusted Data, Improper Restriction of Operations within the Bounds of a Memory Buffer, Uncontrolled Resource Consumption, Out-of-bounds Read, Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion'), Privilege Dropping / Lowering Errors, Allocation of Resources Without Limits or Throttling, Execution with Unnecessary Privileges, Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), Incorrect Authorization 2. RIS...

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 5.9 ATTENTION: Exploitable from adjacent network. Vendor: PTC Equipment: Kepware ThingWorx Kepware Server Vulnerability: Allocation of Resources Without Limits or Throttling 2. RISK EVALUATION Successful exploitation of this vulnerability could crash the target device. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS PTC reports that the following products and versions are affected: PTC Kepware ThingWorx Kepware Server: V6 PTC Kepware KEPServerEX: V6 Software Toolbox TOP Server: V6 GE IGS: V7.6x 3.2 Vulnerability Overview 3.2.1 Allocation of Resources Without Limits or Throttling CWE-770 When performing an online tag generation to devices which communicate using the ControlLogix protocol, a machine-in-the-middle, or a device that is not configured correctly, could deliver a response leading to unrestricted or unregulated resource allocation. This could cause a denial-of-service condition and crash the Kepware application. By default, these functions are...

Cybersecurity researchers have discovered a new variant of the Gafgyt botnet that's targeting machines with weak SSH passwords to ultimately mine cryptocurrency on compromised instances using their GPU computational power. This indicates that the "IoT botnet is targeting more robust servers running on cloud native environments," Aqua Security researcher Assaf Morag said in a Wednesday analysis.

### Summary Allocating an untrusted amount of memory allows any unauthenticated user to OOM a russh server. ### Details An SSH packet consists of a 4-byte big-endian length, followed by a byte stream of this length. After parsing and potentially decrypting the 4-byte length, russh allocates enough memory for this bytestream, as a performance optimization to avoid reallocations later. https://github.com/Eugeny/russh/blob/4eaa080e7532662023f75e8fff45b743fe607f8c/russh/src/cipher/mod.rs#L254 But this length is entirely untrusted and can be set to any value by the client, causing this much memory to be allocated, which will cause the process to OOM within a few such requests. RFC 4253 contains an explicit section on packet length limits: https://datatracker.ietf.org/doc/html/rfc4253#section-6.1 > However, implementations SHOULD check that the packet length is reasonable in order for the implementation to avoid denial of service and/or buffer overflow attacks. ### PoC Running the `...

A wrong assumption made when handling ECMAScript's `AsyncGenerator` operations can cause an uncaught exception on certain scripts. ## Details Boa's implementation of `AsyncGenerator` makes the assumption that the state of an `AsyncGenerator` object cannot change while resolving a promise created by methods of `AsyncGenerator` such as `%AsyncGeneratorPrototype%.next`, `%AsyncGeneratorPrototype%.return`, or `%AsyncGeneratorPrototype%.throw`. However, a carefully constructed code could trigger a state transition from a getter method for the promise's `then` property, which causes the engine to fail an assertion of this assumption, causing an uncaught exception. This could be used to create a Denial Of Service attack in applications that run arbitrary ECMAScript code provided by an external user. ## Patches Version 0.19.0 is patched to correctly handle this case. ## Workarounds Users unable to upgrade to the patched version would want to use [`std::panic::catch_unwind`](https://doc.r...

Eight of the vulnerabilities affect the license update feature for CLIPSP.SYS, a driver used to implement Client License System Policy on Windows 10 and 11.

In K7 Ultimate Security versions prior to 17.0.2019, the driver file (K7RKScan.sys - this version 15.1.0.7) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of a null pointer dereference from IOCtl 0x222010 and 0x222014. At the same time, the drive is accessible to all users in the "Everyone" group.

Debian Linux Security Advisory 5748-1 - Several vulnerabilities have been discovered in the FFmpeg multimedia framework, which could result in denial of service or potentially the execution of arbitrary code if malformed files/streams are processed.

Red Hat Security Advisory 2024-5338-03 - An update for pcs is now available for Red Hat Enterprise Linux 8. Issues addressed include a denial of service vulnerability.

CVE-2024-6768 is a vulnerability in the Common Log File System (CLFS.sys) driver of Windows, caused by improper validation of specified quantities in input data. This flaw leads to an unrecoverable inconsistency, triggering the KeBugCheckEx function and resulting in a Blue Screen of Death (BSoD). The issue affects all versions of Windows 10 and Windows 11, Windows Server 2016, Server 2019 and Server 2022 despite having all updates applied. This Proof of Concept (PoC) shows that by crafting specific values within a .BLF file, an unprivileged user can induce a system crash.