RHSA-2022:1964 — Security Advisory
Red Hat Security Advisory: fetchmail security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · May 10, 2022
Updated · November 22, 2025
Topic
An update for fetchmail is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
Fetchmail is a remote mail retrieval and forwarding utility intended for use over on-demand TCP/IP links, like SLIP or PPP connections. Fetchmail supports every remote-mail protocol currently in use on the Internet (POP2, POP3, RPOP, APOP, KPOP, all IMAPs, ESMTP ETRN, IPv6, and IPSEC) for retrieval. Then Fetchmail forwards the mail through SMTP so the user can read it through their favorite mail client.
Security Fix(es):
-
fetchmail: DoS or information disclosure when logging long messages (CVE-2021-36386)
-
fetchmail: STARTTLS session encryption bypassing (CVE-2021-39272)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.