SB2023122404 - SMTP smuggling attack in Exim
Published: December 24, 2023 Updated: December 29, 2023
Security Bulletin ID
SB2023122404
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Command Injection (CVE-ID: CVE-2023-51766)
The vulnerability allows a remote attacker to spoof email messages.
The vulnerability exists due to an error when handling line endings other than <CR><LF>. A remote attacker can spoof contents of email message and bypass SPF protection mechanism.Remediation
Install update from vendor's website.