SB2022021738 - SUSE update for xen

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2022021738

SB2022021738 - SUSE update for xen

Published: February 17, 2022

Security Bulletin ID SB2022021738
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Integer underflow (CVE-ID: CVE-2022-23034)

CWE-ID: CWE-191 - Integer underflow

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user can perform a denial of service attack.

The vulnerability exists due to integer underflow when unmapping a grant to address XSA-380. A local user can request two forms of mappings to perform a denial of service attack.


2) Incomplete cleanup (CVE-ID: CVE-2022-23035)

CWE-ID: CWE-459 - Incomplete cleanup

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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

The vulnerability exists due to insufficient cleanup of passed-through device IRQs. An attacker with physical access can cause a Denial of Service (DoS) and escalate privileges on the system.


Remediation

Install update from vendor's website.

References