SB2020071421 - Remote code execution in Windows DNS Server
Published: July 14, 2020 Updated: October 8, 2022
Security Bulletin ID
SB2020071421
Severity
Critical
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2020-1350)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing DNS requests. A remote non-authenticated attacker can send a specially crafted DNS request to the affected DNS server, trigger memory corruption and execute arbitrary code on the target system with privileges of the Local System Account.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.