SB2020101351 - Denial of service in Microsoft Windows NAT
Published: October 13, 2020
Security Bulletin ID
SB2020101351
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) Buffer overflow (CVE-ID: CVE-2020-16894)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error when Windows Network Address Translation (NAT) fails to properly handle UDP traffic. A remote authenticated attacker can use a specially crafted application, trigger memory corruption and cause a denial of service condition on the target system.
Remediation
Install update from vendor's website.