CVE Vulnerabilities

CVE-2020-16094

Uncontrolled Recursion

Published: Jul 28, 2020 | Modified: Nov 07, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu
LOW

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.

Weakness

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

Affected Software

Name Vendor Start Version End Version
Claws-mail Claws-mail * 3.17.6 (including)
Claws-mail Ubuntu bionic *
Claws-mail Ubuntu trusty *
Claws-mail Ubuntu xenial *

Potential Mitigations

References