SB2018020111 - Denial of service in Dovecot
Published: February 1, 2018 Updated: February 6, 2018
Security Bulletin ID
SB2018020111
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 security vulnerability.
1) Memory leak (CVE-ID: CVE-2017-15132)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists due to improper memory handling when the software aborts a Simple Authentication and Security Layer (SASL) authentication process. A remote attacker can reuse log-in processes to trigger a memory leak, consume excessive amounts of memory resources and cause the service to crash.
Remediation
Install update from vendor's website.