#dos

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 7.1 ATTENTION: Low attack complexity Vendor: Rockwell Automation Equipment: 1756-ENT2R, 1756-EN4TR, 1756-EN4TRXT Vulnerabilities: Improper Input Validation, Improper Handling of Exceptional Conditions 2. RISK EVALUATION Successful exploitation of these vulnerabilities could result in an attacker causing a denial of service condition. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Rockwell Automation products are affected: 1756-ENT2R: Versions prior to 7.001 1756-EN4TR: Versions prior to 7.001 1756-EN4TRXT: Versions prior to 7.001 3.2 VULNERABILITY OVERVIEW 3.2.1 IMPROPER INPUT VALIDATION CWE-20 A security issue exists in the protected mode of 1756-EN4TR and 1756-ENT2R communication modules, where a Concurrent Forward Close operation can trigger a Major Non-Recoverable (MNFR) fault. This condition may lead to unexpected system crashes and loss of device availability. CVE-2025-8007 has been assigned to this vulnerability. A CVSS v3 base sc...

The HTTP/2 [MadeYouReset vulnerability](https://galbarnahum.com/made-you-reset) has a mild effect on swift-nio-http2. swift-nio-http2 mostly protects against MadeYouReset by using a number of existing denial-of-service prevention patterns that we added in response to the RapidReset vulnerabilities. The result is that servers are not vulnerable to naive attacks based on MadeYouReset, and the naive PoC examples do not affect swift-nio-http2. However, in 1.38.0 we added some defense-in-depth measures as a precautionary measure that detect clients behaving "weirdly". These defense in depth measures tackle resource drain attacks where attackers interleave attack traffic with legitimate traffic to try to evade our existing DoS prevention mechanisms. We recommend all adopters move to 1.38.0 as soon as possible to mitigate against more sophisticated attacks that may appear in the future. We are very grateful to @galbarnahum, @AnatBB, and @YanivRL for their reporting and assistance with our...

Below is a technical explanation of a newly discovered vulnerability in HTTP/2, which we refer to as “MadeYouReset.” ### MadeYouReset Vulnerability Summary The MadeYouReset DDoS vulnerability is a logical vulnerability in the HTTP/2 protocol, that uses malformed HTTP/2 control frames in order to break the max concurrent streams limit - which results in resource exhaustion and distributed denial of service. ### Mechanism The vulnerability uses malformed HTTP/2 control frames, or malformed flow, in order to make the server reset streams created by the client (using the RST_STREAM frame). The vulnerability could be triggered by several primitives, defined by the RFC of HTTP/2 (RFC 9113). The Primitives are: 1. WINDOW_UPDATE frame with an increment of 0 or an increment that makes the window exceed 2^31 - 1. (section 6.9 + 6.9.1) 2. HEADERS or DATA frames sent on a half-closed (remote) stream (which was closed using the END_STREAM flag). (note that for some implementations it's possible ...

Microsoft’s August Patch Tuesday fixes 107 vulnerabilities, including 13 critical RCE flaws, impacting Windows, Office, Azure, and more,…

### Impact A prototype pollution vulnerability exists in versions 0.5.0 and earlier, wherein if you provide a policy name called `__proto__` you can override the Object prototype. For example: ``` const parse = require('content-security-policy-parser'); const x = parse("default-src 'self'; __proto__ foobar"); console.log('raw print:', x); console.log('toString:', x.toString()); ``` Outputs: ``` raw print: Array { 'default-src': [ "'self'" ] } toString: foobar ``` Whilst no gadget exists in this library, it is possible via other libraries expose functionality that enable RCE. It is customary to label prototype pollution vulnerabilities in this way. The most common effect of this is denial of service, as you can trivially overwrite properties. As the content security policy is provided in HTTP queries, it is incredibly likely that network exploitation is possible. ### Patches There has been a patch implemented a year ago (11 Feb 2024), but low uptake of patched versions has not b...

A Denial Of Service via File Upload (DOS) vulnerability in Liferay Portal 7.4.3.0 through 7.4.3.132, Liferay DXP 2025.Q1.0 through 2025.Q1.8, 2024.Q4.0 through 2024.Q4.7, 2024.Q3.0 through 2024.Q3.13, 2024.Q2.0 through 2024.Q2.13, 2024.Q1.1 through 2024.Q1.16 and 7.4 GA through update 92 allows a user to upload a profile picture of more than 300kb into a user profile. This size is more than the noted max 300kb size. This extra data can significantly slow down the Liferay service.

A resource allocation vulnerability exists in Bouncy Castle for Java (by Legion of the Bouncy Castle Inc.) that affects all API modules. The vulnerability allows attackers to cause excessive memory allocation through unbounded resource consumption, potentially leading to denial of service. The issue is located in the ASN1ObjectIdentifier.java file in the core module. This issue affects Bouncy Castle for Java: from BC 1.0 through 1.77, from BC-FJA 1.0.0 through 2.0.0.

Uncontrolled resource consumption in Windows Remote Desktop Services allows an unauthorized attacker to deny service over a network.

Allocation of resources without limits or throttling in Windows DirectX allows an authorized attacker to deny service over a network.