#dos

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.

Red Hat Security Advisory 2024-9738-03 - An update for squid is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Issues addressed include a denial of service vulnerability.

Red Hat Security Advisory 2024-9729-03 - An update for squid is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Issues addressed include a denial of service vulnerability.

Red Hat Security Advisory 2024-9678-03 - An update for squid is now available for Red Hat Enterprise Linux 9.4 Extended Update Support. Issues addressed include a denial of service vulnerability.

Ubuntu Security Notice 7091-2 - USN-7091-1 fixed several vulnerabilities in Ruby. This update provides the corresponding update for ruby2.7 in Ubuntu 20.04 LTS. It was discovered that Ruby incorrectly handled parsing of an XML document that has specific XML characters in an attribute value using REXML gem. An attacker could use this issue to cause Ruby to crash, resulting in a denial of service. This issue only affected in Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. It was discovered that Ruby incorrectly handled parsing of an XML document that has many entity expansions with SAX2 or pull parser API. An attacker could use this issue to cause Ruby to crash, resulting in a denial of service. It was discovered that Ruby incorrectly handled parsing of an XML document that has many digits in a hex numeric character reference. An attacker could use this issue to cause Ruby to crash, resulting in a denial of service.

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 7.7 ATTENTION: Exploitable remotely Vendor: Schneider Electric Equipment: Modicon M340, MC80, and Momentum Unity M1E Vulnerabilities: Improper Enforcement of Message Integrity During Transmission in a Communication Channel, Authentication Bypass by Spoofing 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to retrieve password hashes or cause a denial-of-service condition. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Schneider Electric Modicon M340, MC80, and Momentum Unity M1E are affected: Modicon M340 CPU (part numbers BMXP34*): All versions (CVE-2024-8933) Modicon M340 CPU (part numbers BMXP34*): versions after SV3.60 (CVE-2024-8935) Modicon MC80 (part numbers BMKC80): All versions (CVE-2024-8933) Modicon Momentum Unity M1E Processor (171CBU*): All versions (CVE-2024-8933) 3.2 Vulnerability Overview 3.2.1 Improper Enforcement of Message Integrity During Transmission in a Communi...

### Impact First noticed in Opencast 13 and 14, Opencast's Elasticsearch integration may generate syntactically invalid Elasticsearch queries in relation to previously acceptable search queries. From Opencast version 11.4 and newer, Elasticsearch queries are retried a configurable number of times in the case of error to handle temporary losses of connection to Elasticsearch. These invalid queries would fail, causing the retry mechanism to begin requerying with the same syntactically invalid query immediately, in an infinite loop. This causes a massive increase in log size which can in some cases cause a denial of service due to disk exhaustion. ### Patches Opencast 13.10 and Opencast 14.3 contain patches (https://github.com/opencast/opencast/pull/5150, and https://github.com/opencast/opencast/pull/5033) which address the base issue, with Opencast 16.7 containing changes which harmonize the search behaviour between the admin UI and external API. Users are strongly recommended to up...