SB2021082618 - Multiple vulnerabilities in IBM VIOS

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2021082618

SB2021082618 - Multiple vulnerabilities in IBM VIOS

Published: August 26, 2021

Security Bulletin ID SB2021082618
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Input validation error (CVE-ID: CVE-2021-29727)

CWE-ID: CWE-20 - Improper input validation

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 to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in OS kernel. A local user can can run a specially crafted program to perform a denial of service (DoS) attack.


2) Security restrictions bypass (CVE-ID: CVE-2021-29801)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

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


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

The vulnerability exists due to system does not properly impose security restrictions in OS kernel. A local non-privileged user can execute arbitrary code with root privileges.


3) Input validation error (CVE-ID: CVE-2021-29862)

CWE-ID: CWE-20 - Improper input validation

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 to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in OS kernel. A local user can run a specially crafted program and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References