Resource management error in OpenSMTPD - #VU77500
Published: June 19, 2023
Vulnerability identifier: #VU77500
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: N/A
CWE-ID: CWE-399
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: OpenBSD
Affected software:
OpenSMTPD
OpenSMTPD
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources in smtpd(8) when handling connections from a local, scoped ipv6 address. A local user can send commands to the SMTP server and perform a denial of service (DoS) attack.
Remediation
Install updates from vendor's website.