SB2021032801 - Denial of service in PostSRSd
Published: March 28, 2021
Security Bulletin ID
SB2021032801
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) Input validation error (CVE-ID: N/A)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing an overly long email address. A remote attacker can trick PostFix to pass a whole list of addresses as single query to PostSRSd and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.