SB2020100617 - Fedora 33 update for claws-mail
Published: October 6, 2020 Updated: April 25, 2025
Security Bulletin ID
SB2020100617
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) Uncontrolled Recursion (CVE-ID: CVE-2020-16094)
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In imap_scan_tree_recursive in Claws Mail through 3.17.6, a malicious IMAP server can trigger stack consumption because of unlimited recursion into subdirectories during a rebuild of the folder tree.
Remediation
Install update from vendor's website.