#dos

Red Hat Security Advisory 2024-9977-03 - An update for python-zipp is now available for Red Hat OpenStack Platform 17.1. Issues addressed include a denial of service vulnerability.

Red Hat Security Advisory 2024-9960-03 - OpenShift API for Data Protection 1.3.4 is now available. Issues addressed include a denial of service vulnerability.

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-jgwc-jh89-rpgq. This link is maintained to preserve external references. ## Original Description A vulnerability was found in the Keycloak Server. The Keycloak Server is vulnerable to a denial of service (DoS) attack due to improper handling of proxy headers. When Keycloak is configured to accept incoming proxy headers, it may accept non-IP values, such as obfuscated identifiers, without proper validation. This issue can lead to costly DNS resolution operations, which an attacker could exploit to tie up IO threads and potentially cause a denial of service. The attacker must have access to send requests to a Keycloak instance that is configured to accept proxy headers, specifically when reverse proxies do not overwrite incoming headers, and Keycloak is configured to trust these headers.

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-wq8x-cg39-8mrr. This link is maintained to preserve external references. ## Original Description A vulnerability was found in the Keycloak-services package. If untrusted data is passed to the SearchQueryUtils method, it could lead to a denial of service (DoS) scenario by exhausting system resources due to a Regex complexity.

### Summary An attacker can send a maliciously crafted TOML to cause the parser to crash because of a stack overflow caused by a deeply nested inline structure. A similar problem occurs when attempting to stringify deeply nested objects. The library does not limit the maximum exploration depth while parsing or producing TOML documents, nor does it offer a way to do so. ### Proof of concept ```js require("smol-toml").parse("e=" + "{e=".repeat(9999) + "{}" + "}".repeat(9999)) ``` ### Impact Applications which parse arbitrary TOML documents may suffer availability issues if they receive malicious input. If uncaught, the crash may cause the application itself to crash. The impact is deemed minor, as the function is already likely to throw errors on invalid input and therefore to properly handle errors. Due to the design of most JavaScript runtimes, the uncontrolled recursion does not lead to excessive memory usage and the execution is quickly aborted. As a reminder, it is **strongly**...

Sorting table records using an `ORDER BY` clause with the `rand()` function as sorting mechanism could cause a panic due to relying on a comparison function that did not implement total order. This event resulted in a panic due to a recent [change in Rust 1.81](https://blog.rust-lang.org/2024/09/05/Rust-1.81.0.html#new-sort-implementations). ### Impact A client that is authorized to run queries in a SurrealDB server would be able to query a table with `ORDER BY rand()` in order to potentially cause a panic in the sorting function. This would crash the server, leading to denial of service. ### Patches The sorting algorithm has been updated to guarantee total order when shuffling records. - Version 2.1.0 and later are not affected by this issue. ### Workarounds Affected users who are unable to update may want to limit the ability of untrusted clients to run arbitrary SurrealQL queries in the affected versions of SurrealDB. To limit the impact of the denial of service, SurrealDB ad...

Roles for system users are stored as generic `Ident` values and converted as strings and into the `Role` enum whenever IAM operations are to be performed that require processing the user roles. This conversion expects those identifiers to only contain the values `owner`, `editor` and `viewer` and will return an error otherwise. However, the `unwrap()` method would be called on this result when implementing `std::convert::From<&Ident> for Role`, which would result in a panic where a nonexistent role was used. ### Impact A privileged user with the `owner` role at any level in SurrealDB would be able to define a user with `DEFINE USER` with an nonexistent role, which would panic when being converted to a `Role` enum in order to perform certain IAM operations with that user. These operations included signing in with the user. This would crash the server, leading to denial of service. ### Patches Unexistent roles are no longer accepted during parsing when defining a user. Even when succ...

The `rand::time()` function in SurrealQL generates a random time from an optional range of two Unix timestamps. Due to the underlying use of `timestamp_opt` from the `chrono` crate, this function could potentially return `None` in some instances, leading to a panic when `unwrap` was called on its result in order to return a SurrealQL `datetime` type to the caller of the function. ### Impact A client that is authorized to run queries in a SurrealDB server would be able to make repeated (in the order of millions) calls to `rand::time()` in order to reliably trigger a panic. This would crash the server, leading to denial of service. ### Patches The function has been updated in to guarantee that some `datetime` is returned or that an error is otherwise gracefully handled. - Version 2.1.0 and later are not affected by this issue. ### Workarounds Affected users who are unable to update may want to limit the ability of untrusted clients to run the `rand::time()` function in the affecte...

Ubuntu Security Notice 7015-6 - USN-7015-5 fixed vulnerabilities in python2.7. The update introduced several minor regressions. This update fixes the problem. It was discovered that the Python email module incorrectly parsed email addresses that contain special characters. A remote attacker could possibly use this issue to bypass certain protection mechanisms. It was discovered that Python allowed excessive backtracking while parsing certain tarfile headers. A remote attacker could possibly use this issue to cause Python to consume resources, leading to a denial of service. It was discovered that the Python email module incorrectly quoted newlines for email headers. A remote attacker could possibly use this issue to perform header injection. It was discovered that the Python http.cookies module incorrectly handled parsing cookies that contained backslashes for quoted characters. A remote attacker could possibly use this issue to cause Python to consume resources, leading to a denial of...

The scale of Beijing's systematic tapping of private industry and universities to build up its formidable hacking and cyber-warfare capabilities is larger than previously understood.