SB2024080101 - Ubuntu update for exim4
Published: August 1, 2024 Updated: August 2, 2024
Security Bulletin ID
SB2024080101
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) Input validation error (CVE-ID: CVE-2024-39929)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of RFC 2231 header filename. A remote attacker can bypass a $mime_filename extension-blocking protection mechanism and deliver malicious executable files to the mailboxes.
Remediation
Install update from vendor's website.