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Serious Attacks Could Have Been Staged Through This Amazon ECR Public Gallery Vulnerability

A critical security flaw has been disclosed in Amazon Elastic Container Registry (ECR) Public Gallery that could have been potentially exploited to stage a multitude of attacks, according to cloud security firm Lightspin. "By exploiting this vulnerability, a malicious actor could delete all images in the Amazon ECR Public Gallery or update the image contents to inject malicious code," Gafnit

CVE-2022-23523: loader: x86_64: elf: Avoid reading beyond file end by likebreath · Pull Request #125 · rust-vmm/linux-loader

In versions prior to 0.8.1, the linux-loader crate uses the offsets and sizes provided in the ELF headers to determine the offsets to read from. If those offsets point beyond the end of the file this could lead to Virtual Machine Monitors using the `linux-loader` crate entering an infinite loop if the ELF header of the kernel they are loading was modified in a malicious manner. This issue has been addressed in 0.8.1. The issue can be mitigated by ensuring that only trusted kernel images are loaded or by verifying that the headers do not point beyond the end of the file.

CVE-2022-44699: Azure Network Watcher Agent Security Feature Bypass Vulnerability

**What is Network Watcher?** Azure Network Watcher provides tools to monitor, diagnose, view metrics, and enable or disable logs for resources in an Azure virtual network. Network Watcher is designed to monitor and repair the network health of IaaS (Infrastructure-as-a-Service) products including Virtual Machines (VM), Virtual Networks, Application Gateways, Load balancers, etc. For more details, please refer to: https://learn.microsoft.com/en-us/azure/network-watcher/network-watcher-monitoring-overview

CVE-2022-44713: Microsoft Outlook for Mac Spoofing Vulnerability

**What is the nature of the spoofing?** An attacker could appear as a trusted user when they should not be. This could cause a user to mistakenly trust a signed email message as if it came from a legitimate user.

CVE-2022-44694: Microsoft Office Visio Remote Code Execution Vulnerability

**According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?** The word **Remote** in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. The vulnerable endpoint is only available over the local VM interface as all external communication is blocked. This means an attacker needs to execute code from the local machine to exploit the vulnerability.

CVE-2022-44696: Microsoft Office Visio Remote Code Execution Vulnerability

**According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?** The word **Remote** in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. The vulnerable endpoint is only available over the local VM interface as all external communication is blocked. This means an attacker needs to execute code from the local machine to exploit the vulnerability.

CVE-2022-44695: Microsoft Office Visio Remote Code Execution Vulnerability

**According to the CVSS metric, the attack vector is local (AV:L). Why does the CVE title indicate that this is a remote code execution?** The word **Remote** in the title refers to the location of the attacker. This type of exploit is sometimes referred to as Arbitrary Code Execution (ACE). The attack itself is carried out locally. The vulnerable endpoint is only available over the local VM interface as all external communication is blocked. This means an attacker needs to execute code from the local machine to exploit the vulnerability.

Rash of New Ransomware Variants Springs Up in the Wild

Vohuk, ScareCrow, and AESRT add to the ransomware chaos that organizations have to contend with on a daily basis.

Ubuntu Security Notice USN-5772-1

Ubuntu Security Notice 5772-1 - It was discovered that QEMU incorrectly handled bulk transfers from SPICE clients. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. It was discovered that QEMU did not properly manage memory when it transfers the USB packets. A malicious guest attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.

GHSA-52h2-m2cf-9jh6: linux-loader reading beyond EOF could lead to infinite loop

### Impact The linux-loader crate used the offsets and sizes provided in the ELF headers to determine the offsets to read from. If those offsets pointed beyond the end of the file this could lead to an infinite loop. Virtual Machine Monitors using the `linux-loader` crate could enter an infinite loop if the ELF header of the kernel they are loading was modified in a malicious manner. ### Patches The issue has been addressed in 0.8.1 ### Workarounds The issue can be mitigated by ensuring that only trusted kernel images are loaded or by verifying that the headers to not point beyond the end of the file. ### References See: https://github.com/rust-vmm/linux-loader/pull/125

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