#dos

By Owais Sultan Cyberattacks aim to breach device, program, and system defenses to access critical company or individual data. If a… This is a post from HackRead.com Read the original post: Crucial Cybersecurity Software Features (2022)

The `xml.etree.ElementTree` module that mofh used up until version `1.0.1` implements a simple and efficient API for parsing and creating XML data. But it makes the application vulnerable to: - [Billion Laughs attack](https://en.wikipedia.org/wiki/Billion_laughs_attack): It is a type of denial-of-service attack aimed at XML parsers. It uses multiple levels of nested entities. If one large entity is repeated with a couple of thousand chars repeatedly, the parser gets overwhelmed. - [Quadratic blowup attack](https://www.acunetix.com/vulnerabilities/web/xml-quadratic-blowup-denial-of-service-attack/): It is similar to a Billion Laughs attack. It abuses entity expansion, too. Instead of nested entities, it repeats one large entity with a couple of thousand chars repeatedly. The Problem has been patched starting from version `1.0.1` by utilising the `defusedxml` package instead of `xml.etree.ElementTree`. ### Workarounds For this vulnerability to be exploited the user must be using a c...

Ubuntu Security Notice 5556-1 - It was discovered that Booth incorrectly handled user authentication. An attacker could use this vulnerability to cause a denial of service.

Gentoo Linux Security Advisory 202208-16 - A vulnerability in faac could result in denial of service. Versions less than 1.30 are affected.

Gentoo Linux Security Advisory 202208-18 - A vulnerability in Motion allows a remote attacker to cause denial of service. Versions less than 4.3.2 are affected.

Gentoo Linux Security Advisory 202208-17 - Multiple vulnerabilities have been found in Nextcloud, the worst of which could result in denial of service. Versions less than 23.0.4 are affected.

Ubuntu Security Notice 5567-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Ubuntu Security Notice 5566-1 - Zhenpeng Lin discovered that the network packet scheduler implementation in the Linux kernel did not properly remove all references to a route filter before freeing it in some situations. A local attacker could use this to cause a denial of service or execute arbitrary code. It was discovered that the netfilter subsystem of the Linux kernel did not prevent one nft object from referencing an nft set in another nft table, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service or execute arbitrary code.

Red Hat Security Advisory 2022-6040-01 - Version 1.24.0 of the OpenShift Serverless Operator is supported on Red Hat OpenShift Container Platform versions 4.6, 4.7, 4.8, 4.9, 4.10, and 4.11. This release includes security and bug fixes, and enhancements. Issues addressed include bypass and denial of service vulnerabilities.

Red Hat Security Advisory 2022-6042-01 - Red Hat OpenShift Serverless Client kn 1.24.0 provides a CLI to interact with Red Hat OpenShift Serverless 1.24.0. The kn CLI is delivered as an RPM package for installation on RHEL platforms, and as binaries for non-Linux platforms. Issues addressed include bypass and denial of service vulnerabilities.