SB2020101605 - Uncontrolled Recursion in claws-mail (Alpine package)
Published: October 16, 2020
Security Bulletin ID
SB2020101605
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.