SB2021112410 - Multiple vulnerabilities in Xen 

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2021112410

SB2021112410 - Multiple vulnerabilities in Xen

Published: November 24, 2021

Security Bulletin ID SB2021112410
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Input validation error (CVE-ID: CVE-2021-28705)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in page removal code path. A remote authenticated attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


2) Input validation error (CVE-ID: CVE-2021-28709)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in insertion of new pages code path. A remote authenticated attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References