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Rewterz Threat Advisory – CVE-2022-22977 – VMware Tools for Windows Vulnerability

May 25, 2022
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Rewterz Threat Alert – Vidar Malware – Active IOCs

May 25, 2022

Rewterz Threat Advisory – Multiple Linux Kernel Vulnerabilities

Severity

High

Analysis Summary

CVE-2022-21499 CVSS:9.1

Linux Kernel could allow a remote attacker to bypass security restrictions, caused by a lockdown break issue. By sending a specially-crafted request using the kernel debugger, an attacker could exploit this vulnerability to perform read and write access to kernel memory.

CVE-2022-1786 CVSS:7.8

Linux Kernel could allow a local authenticated attacker to gain elevated privileges on the system, caused by an invalid-free flaw in the io_uring subsystem. By executing a specially-crafted program, an authenticated attacker could exploit this vulnerability to gain elevated privileges or cause a denial of service condition.

Impact

  • Security Bypass
  • Privilege Escalation

Indicators Of Compromise

CVE

  • CVE-2022-21499
  • CVE-2022-1786

Affected Vendors

  • Linux

Affected Products

  • Linux Kernel
  • Linux Kernel 5.10

Remediation

Refer to Linux Kernel GIT Repository for patch, upgrade or suggested workaround information.

CVE-2022-21499
CVE-2022-1786

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