Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2021-39272

Cleartext Transmission of Sensitive Information

Published: Aug 30, 2021 | Modified: Nov 21, 2024
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
5.9 MODERATE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Ubuntu
LOW
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-39272
CWEhttps://cwe.mitre.org/data/definitions/319.html

Fetchmail before 6.4.22 fails to enforce STARTTLS session encryption in some circumstances, such as a certain situation with IMAP and PREAUTH.

Weakness

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

Affected Software

Name Vendor Start Version End Version
Fetchmail Fetchmail * 6.4.22 (excluding)
Red Hat Enterprise Linux 8 RedHat fetchmail-0:6.4.24-1.el8 *
Fetchmail Ubuntu bionic *
Fetchmail Ubuntu esm-infra/bionic *
Fetchmail Ubuntu esm-infra/focal *
Fetchmail Ubuntu focal *
Fetchmail Ubuntu hirsute *
Fetchmail Ubuntu impish *
Fetchmail Ubuntu kinetic *
Fetchmail Ubuntu trusty *
Fetchmail Ubuntu upstream *
Fetchmail Ubuntu xenial *

Potential Mitigations

References

Aqua Security is the largest pure-play cloud native security company, providing customers the freedom to innovate and run their businesses with minimal friction. The Aqua Cloud Native Security Platform provides prevention, detection, and response automation across the entire application lifecycle to secure the build, secure cloud infrastructure and secure running workloads wherever they are deployed.
Copyright © 2025 Aqua Security Software Ltd.   Privacy Policy | Terms of Use