CVE-2020-16094
First published: Tue Jul 28 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Claws-Mail | <=3.17.6 | |
| Fedoraproject Fedora | =31 | |
| Fedoraproject Fedora | =32 | |
| Fedoraproject Fedora | =33 |
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Reference Links
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3CRKHUOVTJBHT53J4CYU53PXYYQKSGEA/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JUBLHUG2UCXVABAGN5FVTD3AB3YKE5NN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YNJIXYDMSXYDII4ERMQ4EEKZX64U3QR4/
- https://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=4313
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JUBLHUG2UCXVABAGN5FVTD3AB3YKE5NN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3CRKHUOVTJBHT53J4CYU53PXYYQKSGEA/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YNJIXYDMSXYDII4ERMQ4EEKZX64U3QR4/
Frequently Asked Questions
What is the severity of CVE-2020-16094?
CVE-2020-16094 has been classified with a high severity rating due to the potential for denial of service through stack consumption.
How do I fix CVE-2020-16094?
To mitigate CVE-2020-16094, update Claws Mail to version 3.17.7 or later, which addresses the vulnerability.
Which versions of Claws Mail are affected by CVE-2020-16094?
CVE-2020-16094 affects Claws Mail versions up to and including 3.17.6.
What types of systems are vulnerable to CVE-2020-16094?
CVE-2020-16094 affects Claws Mail on various Linux distributions, including Fedora 31, 32, and 33.
What causes CVE-2020-16094?
CVE-2020-16094 is caused by unchecked recursion into subdirectories during the rebuilding of the folder tree in Claws Mail.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/weakness
- agent/references
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/claws-mail
- canonical/claws-mail
- version/claws-mail/3.17.6
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/31
- version/fedoraproject fedora/32
- version/fedoraproject fedora/33