SB2021051132 - Remote code execution in Microsoft HTTP Protocol Stack



SB2021051132 - Remote code execution in Microsoft HTTP Protocol Stack

Published: May 11, 2021 Updated: October 25, 2024

Security Bulletin ID SB2021051132
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Use-after-free (CVE-ID: CVE-2021-31166)

CWE-ID: CWE-416 - Use After Free

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


The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in HTTP Protocol Stack. A remote attacker can send a specially crafted HTTP request to the affected system and execute arbitrary code.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.


Remediation

Install update from vendor's website.