SB2022041541 - Fedora 34 update for xen 

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2022041541

SB2022041541 - Fedora 34 update for xen

Published: April 15, 2022

Security Bulletin ID SB2022041541
Severity
Low
Patch available
YES
Number of vulnerabilities 6
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 secuirty vulnerabilities.


1) Memory leak (CVE-ID: CVE-2022-26356)

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due to racy interactions between dirty vram tracking and paging log dirty hypercalls. A local user can force the application to leak memory and perform denial of service attack.


2) Race condition (CVE-ID: CVE-2022-26357)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in the VT-d domain ID cleanup. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.


3) Resource exhaustion (CVE-ID: CVE-2022-26358)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.


4) Resource exhaustion (CVE-ID: CVE-2022-26359)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.


5) Resource exhaustion (CVE-ID: CVE-2022-26360)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.


6) Resource exhaustion (CVE-ID: CVE-2022-26361)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to RMRR (VT-d) and unity map (AMD-Vi) handling issues. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References