SB2018071018 - Denial of service in Microsoft Windows DNSAPI
Published: July 10, 2018
Security Bulletin ID
SB2018071018
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper input validation (CVE-ID: CVE-2018-8304)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to improper handling of DNS responses by Windows Domain Name System (DNS) DNSAPI.dll. A remote attacker can use a malicious DNS server to send corrupted DNS responses and cause a system to stop responding.
Remediation
Install update from vendor's website.