#dos

Ubuntu Security Notice 6734-1 - Alexander Kuznetsov discovered that libvirt incorrectly handled certain API calls. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service. It was discovered that libvirt incorrectly handled certain RPC library API calls. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service. It was discovered that libvirt incorrectly handled detaching certain host interfaces. An attacker could possibly use this issue to cause libvirt to crash, resulting in a denial of service.

Ubuntu Security Notice 6733-1 - It was discovered that GnuTLS had a timing side-channel when performing certain ECDSA operations. A remote attacker could possibly use this issue to recover sensitive information. It was discovered that GnuTLS incorrectly handled verifying certain PEM bundles. A remote attacker could possibly use this issue to cause GnuTLS to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS and Ubuntu 23.10.

Ubuntu Security Notice 6732-1 - Several security issues were discovered in the WebKitGTK Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.

Cisco Talos would like to acknowledge Brandon White of Cisco Talos and Phillip Schafer, Mike Moran, and Becca Lynch of the Duo Security Research team for their research that led to the ,identification of these attacks. Cisco Talos is actively monitoring a global increase in brute-force attacks against a variety

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 8.8 ATTENTION: Exploitable remotely/low attack complexity/public exploits are available Vendor: Electrolink Equipment: FM/DAB/TV Transmitter Vulnerabilities: Authentication Bypass by Assumed-Immutable Data, Reliance on Cookies without Validation and Integrity Checking, Missing Authentication for Critical Function, Cleartext Storage of Sensitive Information 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to obtain full system access, keep the device from transmitting, escalate privileges, change credentials, and execute arbitrary code. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following Electrolink transmitters are affected: 10W, 100W, 250W, Compact DAB Transmitter 500W, 1kW, 2kW Medium DAB Transmitter 2.5kW, 3kW, 4kW, 5kW High Power DAB Transmitter 100W, 500W, 1kW, 2kW Compact FM Transmitter 3kW, 5kW, 10kW, 15kW, 20kW, 30kW Modular FM Transmitter 15W - 40kW Digital FM Transmitter BI, BIII VHF TV Tra...

Cyberattacks tripled over the past year in Israel, making it the most targeted nation in 2023, as cyber operations become a standard part of military conflicts and global protests.

The scrapy/scrapy project is vulnerable to XML External Entity (XXE) attacks due to the use of lxml.etree.fromstring for parsing untrusted XML data without proper validation. This vulnerability allows attackers to perform denial of service attacks, access local files, generate network connections, or circumvent firewalls by submitting specially crafted XML data.

### Impact A vulnerability discovered in the ImageSharp library, where the processing of specially crafted files can lead to excessive memory usage in image decoders. The vulnerability is triggered when ImageSharp attempts to process image files that are designed to exploit this flaw. This flaw can be exploited to cause a denial of service (DoS) by depleting process memory, thereby affecting applications and services that rely on ImageSharp for image processing tasks. Users and administrators are advised to update to the latest version of ImageSharp that addresses this vulnerability to mitigate the risk of exploitation. ### Patches The problem has been patched. All users are advised to upgrade to v3.1.4 or v2.1.8. ### Workarounds Before calling `Image.Decode(Async)`, use `Image.Identify` to determine the image dimensions in order to enforce a limit. ### References - ImageSharp: [Security Considerations](https://docs.sixlabors.com/articles/imagesharp/security.html) - ImageSharp...

### Summary Passing a heavily nested list to sqlparse.parse() leads to a Denial of Service due to RecursionError. ### Details + PoC Running the following code will raise Maximum recursion limit exceeded exception: ```py import sqlparse sqlparse.parse('[' * 10000 + ']' * 10000) ``` We expect a traceback of RecursionError: ```py Traceback (most recent call last): File "trigger_sqlparse_nested_list.py", line 3, in <module> sqlparse.parse('[' * 10000 + ']' * 10000) File "/home/uriya/.local/lib/python3.10/site-packages/sqlparse/__init__.py", line 30, in parse return tuple(parsestream(sql, encoding)) File "/home/uriya/.local/lib/python3.10/site-packages/sqlparse/engine/filter_stack.py", line 36, in run stmt = grouping.group(stmt) File "/home/uriya/.local/lib/python3.10/site-packages/sqlparse/engine/grouping.py", line 428, in group func(stmt) File "/home/uriya/.local/lib/python3.10/site-packages/sqlparse/engine/grouping.py", line 53, in group_brackets _group_mat...

Debian Linux Security Advisory 5659-1 - Bartek Nowotarski discovered that Apache Traffic Server, a reverse and forward proxy server, was susceptible to denial of service via HTTP2 continuation frames.