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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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.
    (CVE-2020-16094)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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.
    (CVE-2020-16094)

Update to 3.17.7 -- https://www.claws-mail.org/news.php

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Type	Severity
256986	Linux Distros Unpatched Vulnerability : CVE-2020-16094	Nessus	Misc.	Local	high
403857	Alpine: multiple claws-mail packages: security update to 3.17.7-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	Local	high
403857	Alpine: multiple claws-mail packages: security update to 3.17.7-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	Local	high
141881	Fedora 33 : claws-mail (2020-1f60842034)	Nessus	Fedora Local Security Checks	Local	high
141490	Fedora 31 : claws-mail (2020-90e2b01f4a)	Nessus	Fedora Local Security Checks	Local	high
141485	Fedora 32 : claws-mail (2020-67d9661fe2)	Nessus	Fedora Local Security Checks	Local	high

Detections

Analytics

CVE-2020-16094

high

Tenable Plugins

high

high

high

high

high

high